A prefabricated assembly process for pipes

Abstract

The application discloses a pipe prefabrication assembly process, and belongs to the technical field of pipe machining and assembly. The pipe prefabrication assembly process comprises the following steps: 3D scanning of a machine room point cloud model, adjustment and approval of a mechanical and electrical comprehensive model according to the 3D scanning of the machine room point cloud model, extraction of the size and welding opening of the pipe according to the mechanical and electrical comprehensive model, generation of drawings according to the size and welding opening of the pipe, and preparation and supply of materials, prefabrication of the pipe in a factory and on-site hoisting according to the drawings and the materials. The machine room is scanned by a three-dimensional imaging sensor, a point cloud model is generated, and the model is adjusted according to the actual situation of the machine room. The pipe is prefabricated, the pipe loss rate is avoided due to on-site machining, the pipe installation efficiency and construction period are accelerated, the business process is simplified, the order is timely and accurately placed, the prefabrication capacity is improved in the factory, the on-site operation workload is further reduced, the on-site working time is shortened, and the sound and light pollution duration of construction is reduced.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of pipe fitting machining and assembly, and particularly relates to a pipe fitting prefabrication and assembly process. BACKGROUND

[0002] Mechanical and electrical installation engineering includes electrical, intelligent, ventilation, air conditioning, water supply and drainage engineering and other parts, in engineering optimization, different parts must be planned. The ventilation pipe fitting construction in the current building is designed by the design personnel according to the fire protection specification, and the construction personnel processes on site according to the drawing. The construction materials used are standard size materials, and the length of each node on the drawing is different, so the materials need to be cut on site, and the on-site operation is difficult to control the construction time and low in efficiency, and once the materials are lacking, the materials need to be ordered again, and the supplier provides the materials, and the business process is complicated.

[0003] As CN110210082A proposes a kind of based on BIM and big data's fabricated building pipe deepening design, manufacturing and construction method, which includes the following steps: based on BIM's pipe configuration;BIM-based multi-professional collaborative design;Based on BIM's fabricated pipe intelligent combination, the solution provided by the application improves the control of the whole process of fabricated building pipe design, manufacturing, construction and application maintenance, improves work efficiency, reduces project cost, and can effectively promote the development of fabricated building pipe. However, it is difficult to control the production and processing process of pipe fitting prefabrication, real-time tracking and feedback of pipe fitting prefabricated products, which is prone to cause secondary rework, and the responsibilities and process division of pipe fitting prefabrication functional departments are not clear. Therefore, we propose a pipe fitting prefabrication process to solve the above problems. SUMMARY

[0004] The purpose of the present application is to provide a pipe fitting prefabrication process to solve the problems of existing pipe fitting prefabrication process in the background art, such as difficulty in controlling the production and processing process of pipe fitting prefabrication, real-time tracking and feedback of pipe fitting prefabricated products, which is prone to cause secondary rework, and unclear responsibilities and process division of pipe fitting prefabrication functional departments.

[0005] To achieve the above purpose, the present application provides the following technical scheme: a pipe fitting prefabrication process, comprising the following steps:

[0006] S1: 3D scanning machine room point cloud model;

[0007] S2: adjusting and approving to generate mechanical and electrical comprehensive model according to 3D scanning machine room point cloud model;

[0008] S3: extracting the size and welding port of pipe fitting according to mechanical and electrical comprehensive model;

[0009] S4: According to the size of the pipe and the welding port, drawings are generated, and materials are prepared and supplied;

[0010] S5: According to the drawings and materials, the factory pre-processes the pipe;

[0011] S6: On-site hoisting.

[0012] Preferably, the machine room is scanned by a three-dimensional imaging sensor to generate a point cloud model, and the model is adjusted according to the actual situation of the machine room. The adjusted model generates a mechanical and electrical comprehensive model through a support and hanger arrangement system. The mechanical and electrical comprehensive model is approved by the packaging party and the supervisor. The approved mechanical and electrical comprehensive model enters the next process.

[0013] Preferably, the mechanical and electrical comprehensive model extracts the engineering quantity through a BIM cost plug-in. The mechanical and electrical comprehensive model extracts and determines the pipe size through an intelligent sizing and cutting plug-in. Then, the mechanical and electrical comprehensive model uploads data materials to a BIM welding management platform through a welding port adding upload plug-in. The welding port data on the BIM welding management platform is issued to the factory pre-process.

[0014] Preferably, the mechanical and electrical comprehensive model generates a module isometric single-line drawing through an IOS isometric drawing plug-in. The drawing of the isometric single-line drawing is issued to the factory pre-process.

[0015] Preferably, the pipe size extracted by the intelligent sizing and cutting plug-in is summarized and filled in a blanking list. The blanking list is summarized by a material employee according to the net quantity of materials. After blanking according to the blanking list, materials are timely put into the field according to the quantity provided by the isometric single-line drawing. Then, the team receives materials according to the isometric single-line drawing and enters the factory pre-process.

[0016] Preferably, the factory pre-process includes air pipe pre-process and vertical pipe pre-process installation. In the air pipe pre-process, system decomposition is performed according to the isometric single-line drawing, i.e., system numbering is performed. The segmented air pipe size is determined. Each air pipe is formed into an air pipe body through an automatic production line air pipe forming according to the air pipe number and corresponding size obtained by system decomposition. Air pipe components are manufactured to generate air pipe assemblies. The air pipe assemblies and the air pipe body are connected and assembled into air pipe pre-process pieces through flanges. Then, inspection and labeling are performed.

[0017] Preferably, in the automatic production line air pipe forming, a material list is arranged according to the data obtained by system decomposition. Then, a sample is placed according to the decomposition number. Then, the size is labeled. After data input, the production line operates. The air pipe forming produces an air pipe body. In the air pipe component manufacturing, a material list is arranged according to the data obtained by system decomposition. Then, a sample is placed according to the decomposition number. Then, the size is labeled. The steel plate is opened and flattened. The air pipe is processed. The air pipe forming forms an air pipe assembly. The automatic production line air pipe forming and the air pipe component manufacturing can be performed simultaneously.

[0018] Preferably, in the flange connection, first, according to the data material flange of the air pipe, the flange is cut, the flange is produced, the flange is assembled with the air pipe assembly and the air pipe, and the air pipe is assembled into an air pipe prefabricated part, in the inspection number, the air pipe prefabricated part is inspected and accepted, after the acceptance, the air pipe is numbered according to the exploded view, and then is stacked according to the number.

[0019] Preferably, in the stand pipe prefabricated installation, first, prefabricated stand pipe data is collected, then a prefabricated stand pipe construction scheme is prepared, a prefabricated stand pipe processing drawing is drawn, a prefabricated pipe column is produced according to the data of the prefabricated pipe column processing drawing, an operator performs prefabricated pipe group acceptance according to the prefabricated pipe column processing drawing, the prefabricated pipe group that passes the acceptance is transported to the assembly site, and is subjected to on-site acceptance again, after the acceptance, on-site hoisting is performed, the qualified pipe group is installed in the pipe well, then pipe well acceptance is performed, and after the acceptance, the prefabricated stand pipe is hoisted on site.

[0020] Preferably, the prefabricated air pipe is transported to the site, a lofting robot is used for lofting on site, the prefabricated air pipe and the prefabricated stand pipe are hoisted on site, and the on-site hoisting includes centrifuge group positioning, support hanger assembly, centrifuge group main support pipe component assembly, cooling water pump positioning, water pump water inlet and outlet, main support pipe and support hanger assembly, refrigeration pump positioning, water pump water inlet and outlet, main support pipe and support hanger assembly, cooling plate heat exchanger main pipe, support pipe component and support assembly, water circulating pump positioning, water pump water inlet and outlet, main support pipe and support hanger assembly, refrigeration pump positioning, water pump water inlet and outlet, main support pipe and support hanger assembly, water distributor and main support pipe and support hanger assembly, and installation of all prefabricated components is completed.

[0021] Compared with the prior art, the beneficial effects of the present application are:

[0022] 1. By prefabricating the pipe fittings, the on-site processing is avoided, the pipe material loss rate is reduced, the pipe fitting installation efficiency and construction period are accelerated, the business process is simplified, the order is timely and accurately placed, the prefabrication capacity is improved in the factory, the on-site operation workload is further reduced, the on-site working time is shortened, and the sound and light pollution time of construction is reduced.

[0023] 2. The prefabrication production process of the pipe fittings is clear, the intermediate inspection in production is facilitated, the progress of the pipe fitting prefabrication is tracked in time, the progress information is fed back in real time, the construction time is grasped and controlled, and the work efficiency is improved.

[0024] 3. The construction process can be carried out according to the established installation process, the pipe fitting prefabrication process is clear, and the corresponding function and responsibility are clear. BRIEF DESCRIPTION OF DRAWINGS

[0025] Figure 1 for the overall flowchart of the present application;

[0026] Figure 2 for the main flowchart of the present application;

[0027] Figure 3 for the duct prefabrication flowchart of the present application;

[0028] Figure 4 for the riser prefabrication and installation flowchart of the present application. DETAILED DESCRIPTION

[0029] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0030] Please refer to Figures 1-4 The present application provides a technical solution: a pipe prefabrication and assembly process flow, comprising the following steps:

[0031] S1: 3D scanning of the machine room point cloud model;

[0032] S2: adjusting and approving to generate the electromechanical comprehensive model according to the 3D scanning machine room point cloud model;

[0033] S3: extracting the size and welding opening of the pipe according to the electromechanical comprehensive model;

[0034] S4: generating drawings according to the size and welding opening of the pipe, and preparing and supplying materials;

[0035] S5: processing plant prefabrication of the pipe according to the drawings and materials;

[0036] S6: on-site hoisting.

[0037] In the present embodiment, the pipe is prefabricated in the processing plant, avoiding on-site processing to increase the pipe loss rate, speeding up the pipe installation efficiency and construction period, and the pipe is sent to the processing plant for processing, and the factory prefabrication can further improve the prefabrication capacity. The factory prefabrication is more accurate than on-site processing, reduces the pipe processing loss rate, improves the pipe processing accuracy, and reduces the secondary rework rate.

[0038] Specifically, the machine room is scanned by a three-dimensional imaging sensor to generate a point cloud model, and the model is adjusted according to the actual situation of the machine room. The adjusted model generates an electromechanical comprehensive model through the support and hanger arrangement system. The electromechanical comprehensive model is approved by the contractor and the supervisor. The electromechanical comprehensive model that passes the approval enters the next process.

[0039] In this embodiment, the point cloud is a dataset of points in a certain coordinate system, and the points contain rich information, including three-dimensional coordinates X, Y, Z, color, classification value, intensity value, time, and the like. The model data is adjusted according to the actual situation of the machine room, and the support and support arrangement system can generate a mechanical and electrical comprehensive model. The contractor refers to a legal person who undertakes the direct investment responsibility and entrusts the supervision business, and its legal heir. The supervision refers to a legal person who undertakes the supervision business and supervision responsibility, and its legal heir. Only after being approved by the contractor and the supervision, the next process can be carried out.

[0040] Specifically, the mechanical and electrical comprehensive model extracts the engineering quantity through the BIM cost plug-in. The mechanical and electrical comprehensive model extracts and determines the pipe size through the intelligent sizing and cutting plug-in. Then the mechanical and electrical comprehensive model uploads the data materials to the BIM welding management platform through the welding opening adding upload plug-in. The welding opening data on the BIM welding management platform is issued to the prefabrication factory.

[0041] In this embodiment, the pipe size and welding opening data are extracted using related plug-ins, and the engineering quantity is extracted through the BIM cost plug-in, which is convenient for preparing construction budget and construction enterprise operation plan, helps to reasonably arrange construction progress, organize and arrange materials and components, and coordinate material supply.

[0042] Specifically, the mechanical and electrical comprehensive model generates the front isometric single line drawing through the IOS front isometric drawing plug-in generation module. The drawing of the front isometric single line drawing is issued to the prefabrication factory.

[0043] In this embodiment, the front isometric single line drawing is a pipe drawing drawn according to the front isometric projection method, also known as a pipe section drawing. The front isometric single line drawing serves as a data reference for prefabricating pipe fittings in the factory.

[0044] Specifically, the pipe size extracted by the intelligent sizing and cutting plug-in is filled on the blanking list. The blanking list is summarized by the material staff according to the material net quantity. After blanking according to the blanking list, materials are timely put into the field according to the quantity provided by the single line drawing. Then the team receives materials according to the single line drawing and enters the factory for prefabrication.

[0045] In this embodiment, the material net quantity is summarized according to the engineering quantity, and the pipe size extracted by the intelligent sizing and cutting plug-in is used for blanking.

[0046] Specifically, the prefabrication of the processing plant includes the wind pipe prefabrication and the riser prefabrication installation. In the wind pipe prefabrication, the system is decomposed according to the orthographic projection single line drawing, that is, the system is numbered, the segmented wind pipe size is determined, each wind pipe is formed into a wind pipe body according to the wind pipe number and the corresponding size obtained by the system decomposition through the automatic production line wind pipe forming, and the wind pipe and the component are manufactured into a wind pipe assembly, and the wind pipe assembly and the wind pipe body are assembled into a wind pipe prefabricated part through flange connection, and then the inspection and labeling are performed.

[0047] In the embodiment, each wind pipe is numbered according to the system number, which facilitates subsequent pipe fitting classification and assembly, the wind pipe and the component are manufactured into a wind pipe assembly, and the wind pipe assembly and the wind pipe body are assembled into a wind pipe prefabricated part through flange connection, and then the inspection and labeling are performed.

[0048] Specifically, in the automatic production line wind pipe forming, a material list is arranged according to the data obtained by the system decomposition, and then the sample is laid according to the decomposition number, and the size is labeled, and after the data is input, the production line operates, the wind pipe body is produced, in the wind pipe component manufacturing, a material list is arranged according to the data obtained by the system decomposition, and then the sample is laid according to the decomposition number, and the size is labeled, and the steel plate is opened and flattened, and the wind pipe is processed, and the wind pipe forming forms a wind pipe assembly, and the automatic production line wind pipe forming and the wind pipe component manufacturing can be performed simultaneously.

[0049] In the embodiment, the automatic production line wind pipe forming and the wind pipe component manufacturing can be performed simultaneously, the wind pipe body generated by the automatic production line wind pipe forming, and the wind pipe body and the component are manufactured into a wind pipe assembly.

[0050] Specifically, in the flange connection, first, the flange is manufactured according to the data material flange of the wind pipe, the produced flange, the wind pipe assembly and the wind pipe are assembled into a wind pipe prefabricated part, in the inspection and labeling, the wind pipe is first inspected and accepted, after the acceptance, the wind pipe is numbered according to the decomposition drawing, and then the wind pipe is stacked according to the number.

[0051] In the embodiment, the flange connects and installs the element, after the wind pipe prefabricated part is numbered, the inspection and acceptance are performed, and the wind pipe prefabricated part that passes the acceptance is subjected to the next process.

[0052] Specifically, in the riser prefabrication installation, first, the prefabricated riser data is collected, then the prefabricated riser construction scheme is prepared, the prefabricated riser processing drawing is drawn, the prefabricated pipe column is manufactured according to the data of the prefabricated riser processing drawing, the operator performs the prefabricated pipe group acceptance according to the prefabricated riser processing drawing, the prefabricated pipe group that passes the acceptance is transported to the assembly site, the on-site acceptance is performed again, after the acceptance, the on-site hoisting is performed, the qualified pipe group is installed in the pipe well, then the pipe well acceptance is performed, and after the acceptance, the qualified pipe group is hoisted on site with the wind pipe prefabricated part after the wind pipe prefabrication.

[0053] In this embodiment, the riser is sent to the site after passing the acceptance, and is installed in the tube well. The subsequent process is carried out after passing the acceptance.

[0054] Specifically, the air pipe prefabricated piece after the air pipe prefabrication is transported to the site, the lofting robot is lofted on site, the air pipe prefabricated piece after the air pipe prefabrication and the riser prefabricated and installed riser are hoisted on site, the steps of hoisting on site include centrifuge unit in place, support hanger assembly; centrifuge unit main branch pipe component assembly; cooling water pump in place, water pump water inlet and outlet, main branch pipe and support hanger assembly; refrigeration pump in place, water pump water inlet and outlet, main branch pipe and support hanger assembly; cooling plate heat exchanger main pipe, branch pipe component and support assembly; water circulating pump in place, water pump water inlet and outlet, main branch pipe and support hanger assembly, refrigeration pump in place; water pump water inlet and outlet main pipe and support hanger assembly; water distributor and its main branch pipe and support hanger assembly; complete installation of all prefabricated components.

[0055] In this embodiment, each component is transported to the site for assembly, and each prefabricated component is assembled according to the steps in the on-site hoisting, the installation of all prefabricated components is completed, the time of on-site installation is shortened, and the construction efficiency is improved.

[0056] The working principle and use process of the application are as follows: the machine room is scanned by a three-dimensional imaging sensor to generate a point cloud model, and the model is adjusted according to the actual situation of the machine room; the adjusted model generates an electromechanical comprehensive model through a support hanger arrangement system; the electromechanical comprehensive model is approved by a package party and a supervisor; the approved electromechanical comprehensive model extracts engineering quantity and pipe size through a BIM cost plug-in and an intelligent sizing cutting plug-in respectively; then the electromechanical comprehensive model uploads data materials to a BIM welding management platform through a welding opening adding upload plug-in; the welding opening data on the BIM welding management platform is sent to a processing factory for prefabrication; the electromechanical comprehensive model generates a module isometric single-line drawing through an IOS isometric drawing plug-in, and then sends it to the processing factory for prefabrication; the pipe size extracted by the intelligent sizing cutting plug-in is filled on a blanking sheet, and the blanking sheet is summarized by a material clerk according to the net quantity of materials; after the blanking sheet is blanked, the materials are timely put into the field according to the quantity provided by the single-line drawing, and then the materials are taken by a team according to the single-line drawing; the processing factory prefabrication includes air pipe prefabrication and vertical pipe prefabrication installation; in the air pipe prefabrication, the system is decomposed according to the isometric single-line drawing, that is, the system is numbered, the segmented air pipe size is determined, each air pipe is numbered according to the system decomposition, and the air pipe body is formed through an automatic production line air pipe forming according to the air pipe number and the corresponding size obtained by the system decomposition, and the air pipe and the parts are made to form an air pipe assembly; in the automatic production line air pipe forming, a material sheet is arranged according to the data obtained by the system decomposition, then the sample is placed according to the decomposition number, and then the size is labeled; after the data is input, the production line operates, the air pipe body is produced, and in the air pipe part making, a material sheet is arranged according to the data obtained by the system decomposition, then the sample is placed according to the decomposition number, and then the size is labeled; the steel plate is opened and flattened, the air pipe is processed, the air pipe forming forms an air pipe assembly, the automatic production line air pipe forming and the air pipe part making can be carried out at the same time, the air pipe assembly and the air pipe body are connected and assembled into an air pipe prefabricated part through a flange, and then the air pipe prefabricated part is checked and labeled; the air pipe prefabricated part after the air pipe prefabrication is transported to the site, a sample placing robot places the sample on site, and the air pipe prefabricated part after the air pipe prefabrication and the vertical pipe after the vertical pipe prefabrication installation are hoisted on site; the steps of the on-site hoisting include: centrifugal unit positioning, support hanger assembly; centrifugal unit main support pipe part assembly; cooling water pump positioning, water pump water inlet and outlet, main support pipe and support hanger assembly; refrigeration pump positioning, water pump water inlet and outlet, main support pipe and support hanger assembly; cooling plate heat exchanger main pipe, support pipe part and support assembly; water circulating pump positioning, water pump water inlet and outlet, main support pipe and support hanger assembly; water pump water inlet and outlet, main support pipe and support hanger assembly; water distributor and main support pipe and support hanger assembly; installation of all prefabricated parts is completed.

[0057] While embodiments of the application have been shown and described, it is to be understood that the embodiments described are merely exemplary of the principles and application of the present application. Numerous modifications and adaptions can be effected without departing from the spirit and scope of the present application, which is not limited to the exact construction and arrangement described. It is intended, therefore, to cover all modifications and adaptions that fall within the scope of the claims and their equivalents.

Claims

1. A pipe prefabrication assembly process, characterized by: It comprises the following steps: S1: 3D scanning machine room point cloud model; S2: According to the 3D scanning machine room point cloud model, adjust the approval to generate the electromechanical comprehensive model; S3: According to the electromechanical comprehensive model, extract the size and welding port of the pipe fitting; S4: According to the size and welding port of the pipe fitting, generate drawings and prepare materials, the electromechanical comprehensive model extracts the pipe size through the intelligent sizing cutting plug-in, and then the electromechanical comprehensive model uploads the data materials to the BIM welding management platform through the welding port adding upload plug-in, and the welding port data on the BIM welding management platform is issued to the processing factory for prefabrication; S5: According to the drawings and materials, the processing factory prefabricates the pipe fitting; S6: On-site hoisting.

2. A prefabrication assembly process for pipe elements according to claim 1, characterized in that: The machine room is scanned by a three-dimensional imaging sensor to generate a point cloud model, and the model is adjusted according to the actual situation of the machine room. The adjusted model generates an electromechanical comprehensive model through a support hanger arrangement system. The electromechanical comprehensive model is approved by the contractor and the supervisor. The electromechanical comprehensive model that has passed the approval enters the next process.

3. A prefabrication assembly process for pipe elements according to claim 2, characterized in that: The electromechanical comprehensive model generates a module isometric single-line drawing through an IOS isometric drawing plug-in. The drawing of the isometric single-line drawing is issued to the processing factory for prefabrication.

4. A prefabrication assembly process for pipe elements according to claim 3, characterized in that: The pipe size extracted by the intelligent sizing cutting plug-in is filled on the material cutting list. The material cutting list is summarized by the material personnel according to the net quantity of materials. After cutting according to the material cutting list, the materials are timely put into the field according to the quantity provided by the isometric single-line drawing. Then the team receives the materials according to the isometric single-line drawing and enters the processing factory for prefabrication.

5. A prefabrication assembly process for pipe elements according to claim 3, characterized in that: The processing factory prefabrication includes duct prefabrication and vertical pipe prefabrication installation. In the duct prefabrication, the system is decomposed according to the isometric single-line drawing, that is, the system is numbered, the segmented duct size is determined, each duct is numbered according to the system decomposition, and the duct body is generated through the automatic production line duct forming according to the duct number and corresponding size obtained by system decomposition. The duct component manufacturing generates a duct assembly. The duct assembly and the duct body are connected through flanges to assemble into a duct prefabricated part, and then the number is checked.

6. A prefabrication assembly process for pipe elements according to claim 5, characterized in that: In the automatic production line duct forming, the data obtained by system decomposition is arranged on a material list, then the sample is placed according to the decomposition number, and then the size is labeled. After data input, the production line operates, the duct body is produced by duct forming, and the duct component manufacturing is arranged on a material list according to the data obtained by system decomposition, then the sample is placed according to the decomposition number, and then the size is labeled. The steel plate is opened and the duct is processed. The duct forming forms a duct assembly. The automatic production line duct forming and the duct component manufacturing are performed simultaneously.

7. A prefabrication assembly process for pipe elements according to claim 5, characterized in that: In the flange connection, first, the flange is manufactured according to the data material flange cutting of the duct. The produced flange and the duct assembly and the duct are assembled into a duct prefabricated part through flange assembly. In the checking number, the duct prefabricated part is first checked and accepted, then the duct is numbered according to the decomposition drawing, and then it is stacked according to the number.

8. A prefabrication assembly process for pipe elements according to claim 5, characterized in that: The riser prefabrication installation first collects the prefabricated riser data, then prepares the prefabricated riser construction scheme, draws the prefabricated riser processing diagram, produces the prefabricated pipe column according to the data of the prefabricated pipe column processing diagram, the operator checks and accepts the prefabricated pipe group according to the prefabricated pipe column processing diagram, transports the prefabricated pipe group to the assembly site after passing the acceptance, and performs the on-site hoisting again after passing the acceptance, installs the qualified pipe group in the pipe well, then performs the pipe well acceptance, and then performs the on-site hoisting with the wind pipe prefabricated piece after the wind pipe prefabrication is completed.

9. A prefabrication assembly process for pipe elements according to claim 8, characterized in that: The wind pipe prefabricated piece after the wind pipe prefabrication is transported to the site, the lofting robot is lofted on site, the wind pipe prefabricated piece after the wind pipe prefabrication is completed and the riser prefabrication installation is completed, and the on-site hoisting is performed, the steps of the on-site hoisting include: centrifuge unit in place, support hanger assembly; centrifuge unit main branch pipe component assembly; cooling water pump in place, water pump water inlet and outlet, main branch pipe and support hanger assembly; refrigeration pump in place, water pump water inlet and outlet, main branch pipe and support hanger assembly; cooling plate heat exchanger main pipe, branch pipe component and support assembly; water circulating pump in place, water pump water inlet and outlet, main branch pipe and support hanger assembly; water distributor and its main branch pipe, support hanger assembly; complete installation of all prefabricated components.

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