Modularized refrigeration house building method

Abstract

The invention relates to the technical field of modular refrigeration house building, and provides a modular refrigeration house building method which comprises the following steps: S1, steel column fixation: fixing a vertical steel column on each connecting sleeve; s2, a main beam is installed, the main beam is connected with two adjacent steel columns through connecting pieces, and the steel columns and the main beam form an inner steel frame structure; s3, roof trusses and purlins are installed, the multiple roof trusses are distributed at intervals, and the roof trusses are supported above the main beams through broken cold bridge supporting columns; s4, an outer enclosure is installed, a cold storage plate vertical plate and a cold storage plate top plate which are used are each provided with a heat preservation structure, the outer surfaces of the cold storage plate vertical plate and the cold storage plate top plate are each of a steel structure, the cold storage plate vertical plate and the cold storage plate top plate form an outer heat preservation structure, and the outer heat preservation structure is covered with a color steel plate; and S5, ground installation is conducted, specifically, a floor module with a heat preservation function is laid on the hardened ground. By means of the technical scheme, the modularized refrigeration house convenient to migrate and recombine is built, construction such as high-rise civil engineering is reduced through the inner steel frame supporting the outer heat preservation structure, and large-area capacity expansion can be achieved.

Description

Technical Field

[0001] This invention relates to the field of modular cold storage construction technology, and in particular to a method for constructing a modular cold storage. Background Technology

[0002] Existing large-scale cold storage facilities typically require initial civil engineering or external steel frame construction before the internal cold storage units are built. This is a conventional internal insulation structure construction method, which relies on and is limited by the protection of the external fixed building. The internal cold storage is not easily expanded or reduced in size, is a fixed facility, and its construction is relatively complex. It cannot be relocated or moved for use. Ideally, cold storage should be located near fruits and vegetables; the shorter the time freshly harvested produce spends in the cold storage, the less spoilage. However, because existing large-scale cold storage facilities are fixed buildings, once the nearby fruits and vegetables have been harvested and transported, the cold storage remains idle for a long time, resulting in resource waste.

[0003] Existing modular cold storage facilities are all small-scale. For example, patent application number 202422250661.1 discloses a modular cold storage facility. The construction method involves directly splicing and connecting multiple complete cold storage structures to form modular components. Although the assembly and construction are very simple and flexible, the structure of the cold storage is similar to a small container or a small truck, which is not convenient for building medium and large-scale cold storage facilities. The amount of goods that can be stored is limited, and the structural strength is poor. It is not convenient or possible for forklifts and other handling equipment to enter the interior of the cold storage facility, resulting in low efficiency in handling and placing goods and inconvenience in use.

[0004] Existing fixed cold storage buildings are not suitable for large-scale renovations or transportation and relocation. Small modular cold storage facilities have limited storage capacity and are not convenient for forklifts and other handling equipment to enter and exit. Therefore, existing cold storage facilities are not suitable for construction near fruit and vegetable fields, as this affects the freshness of the fruits and vegetables. Summary of the Invention

[0005] The technical problem to be solved by the present invention is to provide a modular cold storage construction method to address the above-mentioned technical deficiencies. This method constructs a modular cold storage that is easy to relocate and reassemble. By using an internal steel frame to support an external insulation structure, it reduces the need for construction of high-rise buildings and allows for large-scale expansion.

[0006] The technical solution adopted in this invention is: to provide a modular cold storage construction method, including the following steps: S1. Steel column fixing: Several precast concrete components are distributed at intervals on the hardened ground. The connecting sleeves on the upper part of the precast concrete components extend beyond the hardened ground. Angle irons along the square frame are fixed to the upper end of the precast concrete components. A vertical steel column is fixed on each connecting sleeve. S2. Main beam installation: A connector is installed at the top of each steel column. The end of the main beam is fixedly connected to the connector. The main beam connects two adjacent steel columns through the connector. A thermal break support is fixed at the top of the connector. The steel columns and the main beam form an internal steel frame structure. S3. Roof truss and purlin installation: Several roof trusses are spaced apart. The upper end of the thermal break support is connected to the lower end of the roof truss. The roof truss is supported above the main beam, and then purlins are installed on the upper end of the roof truss. S4. External enclosure installation: Cold storage panels are installed around the inner steel frame structure. The lower end of the cold storage panels is inside the angle steel. The cold storage panel top is laid on the upper end of the inner steel frame structure. Both the cold storage panels and the cold storage panel top have insulation structures and their outer surfaces are steel structures. The cold storage panels and the cold storage panel top form the external insulation structure. The upper end of the thermal break bridge support extends to the top of the cold storage panel. The color steel plate is installed on the purlins and covers the external insulation structure. There is a ventilation gap between the color steel plate and the cold storage panel top. One side of the cold storage panel has a sliding door. S5. Ground installation: Lay floor modules with heat insulation function on hardened ground. The upper part of the floor modules supports shelves and handling equipment. S6. Equipment installation: Install refrigeration equipment, and install the refrigeration equipment's air cooler on the main beam.

[0007] To further optimize this technical solution, in step S1, the precast concrete components are distributed at standard intervals, the lower part of the steel column is detachably connected to the connecting sleeve via bolt assemblies, and the angle iron is connected to the precast concrete components via expansion tubes.

[0008] To further optimize this technical solution, in step S2, the connecting component is as follows: the lower end of the main beam sleeve is detachably connected to the upper end of the main beam, and the upper end is detachably connected to the cold-break bridge support. Insertion parts are set around the perimeter according to the position and number of the main beams to be connected, and the insertion parts are detachably connected to the main beams.

[0009] To further optimize this technical solution, after the main beam is installed in step S2, a secondary beam is installed between the opposing main beams. Installation holes are reserved on the main beam, and the secondary beam sleeve is fixed to the main beam through the installation holes by bolt assembly. The end of the secondary beam is fixed to the secondary beam sleeve by bolt assembly.

[0010] To further optimize this technical solution, after step S2 and before step S6, an equipment bracket is installed on the main beam. Installation holes are reserved on the main beam, and the secondary beam sleeve is detachably connected to the main beam. The equipment bracket is detachably connected to the secondary beam sleeve.

[0011] To further optimize this technical solution, after step S2 and after the installation of the secondary beam, the aluminum busbar and / or lighting fixtures are hoisted, and the main beam and secondary beam have reserved installation holes for hoisting the aluminum busbar and / or lighting fixtures.

[0012] To further optimize this technical solution, in step S5, the floor module is a layered structure, consisting of a moisture-proof and vapor-barrier membrane, several layers of high-strength extruded insulation board, a waterproof and breathable membrane, and a non-slip high-strength bamboo plywood from bottom to top. The non-slip high-strength bamboo plywood is used to support handling tools and shelves, and the side of the floor module abuts against the lower inner side of the cold storage panel upright.

[0013] To further optimize this technical solution, several layers of high-strength extruded polystyrene insulation boards are laid in a staggered manner between the upper and lower layers. The floor joists are laid on one of the high-strength extruded polystyrene insulation boards and are flush with the uppermost high-strength extruded polystyrene insulation board. Anti-slip high-strength bamboo plywood is installed on the floor joists.

[0014] To further optimize this technical solution, steel columns, main beams, and secondary beams are each painted in a different color to facilitate quick differentiation of steel columns, main beams, and secondary beams during construction, allowing for installation according to the specified steps.

[0015] To further optimize this technical solution, the thermal break bridge support is made of wood. In step S3, the thermal break bridge support is detachably connected to the roof truss via bolt assemblies.

[0016] The beneficial effects of this invention are as follows: 1. By constructing an internal steel frame structure to support the external insulation layer, it provides built-in protection and does not require high-rise civil engineering or external steel frame structures for shielding. It is also not limited by space and can be directly built outdoors as a modular cold storage that is easy to move and reassemble. Through the connection and expansion of the internal steel frame structure, it is easier to expand the area.

[0017] 2. No high-rise civil construction is required. It can be built and used close to the picking point, which shortens the time for goods to enter the cold storage and improves the quality. After being used as a cold storage, it can be disassembled and transported to other places. The hardened ground can be used for other purposes, such as drying and stacking goods.

[0018] 3. Both the internal steel frame structure and the external insulation structure can facilitate the setting of standard units, making it easy to carry out standardized construction. Moreover, no civil engineering construction is required when disassembling and reassembling, making construction faster.

[0019] 4. The floor modules, which have both thermal insulation and support capabilities, meet the bottom insulation requirements and form a complete insulation space with the external insulation structure, while also meeting the needs of forklifts and other handling equipment. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the modular cold storage three-dimensional structure of the present invention; Figure 2 This is a schematic diagram of the structure after the steel column of the present invention is fixed; Figure 3 This is a schematic diagram of the connection structure between the steel column and the precast concrete component of the present invention; Figure 4This is a schematic diagram of the main beam structure after installation according to the present invention; Figure 5 This is a schematic diagram of the connector structure of the present invention; Figure 6 This is a schematic diagram of the secondary beam and equipment support structure after installation according to the present invention; Figure 7 This is a schematic diagram of the secondary beam installation structure of the present invention; Figure 8 This is a schematic diagram of the equipment bracket installation structure of the present invention; Figure 9 This is a schematic diagram of the roof truss structure after installation according to the present invention; Figure 10 This is a schematic diagram of the roof truss installation structure of the present invention; Figure 11 This is a schematic diagram of the outer enclosure installation structure of the present invention; Figure 12 This is a schematic diagram of the overall appearance and structure of the present invention; Figure 13 This is a schematic diagram of the layered structure of the floor module of the present invention; Figure 14 This is a schematic diagram of the floor module installation structure of the present invention; Figure 15 This is a schematic diagram illustrating the effect of the color scheme of the present invention; Figure 16 This is a schematic diagram illustrating the effect of the second color scheme of the present invention; Figure 17 This is a schematic diagram of the aluminum busbar hoisting structure of the present invention; The markings in the diagram are as follows: 1. Hardened ground; 101. Precast concrete component; 102. Connecting sleeve; 2. Angle iron; 301. Steel column; 302. Main beam; 303. Secondary beam; 401. Main beam sleeve; 4011. Insertion joint; 402. Secondary beam sleeve; 403. Equipment support; 501. Air cooler; 502. Aluminum busbar; 503. Lighting fixture; 6. Thermal bridge support; 7. Color steel plate; 701. Roof truss; 702. Purlin; 801. Cold storage panel upright; 8011. Sliding door; 802. Cold storage panel top; 9. Floor module; 901. Moisture-proof vapor barrier membrane; 902. High-strength extruded polystyrene insulation board; 903. Waterproof and breathable membrane; 904. Anti-slip high-strength bamboo plywood; 905. Floor joists. Detailed Implementation

[0021] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0022] To keep the drawings concise, each figure only schematically shows the parts relevant to the invention, and these do not represent the actual structure of the product. Furthermore, for ease of understanding, in some figures, only one of the components with the same structure or function is schematically shown, or only one is labeled. In this document, "one" not only means "only one," but can also mean "more than one," and "several" includes "two" and "more than two."

[0023] In this document, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0024] Furthermore, in the description of this application, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0025] like Figure 1-17 As shown, a modular cold storage construction method, such as Figure 2-5 , Figure 9-14 It includes the following steps: S1. Steel column 301 is fixed. Several precast concrete components 101 are distributed at intervals on the hardened ground 1. The connecting sleeve 102 on the upper part of the precast concrete component 101 extends beyond the hardened ground 1. Angle iron 2, which is set along the square frame, is fixed to the upper end of the precast concrete component 101 on the outside. A vertical steel column 301 is fixed on each connecting sleeve 102. S2. Installation of main beam 302: A connector is installed at the upper end of each steel column 301. The end of the main beam 302 is fixedly connected to the connector. The main beam 302 connects two adjacent steel columns 301 through the connector. A thermal break support 6 is fixed at the upper end of the connector. The steel columns 301 and the main beam 302 form an internal steel frame structure. S3, Roof truss 701 and purlin 702 are installed. Several roof trusses 701 are distributed at intervals. The upper end of the thermal break support 6 is connected to the lower end of the roof truss 701. The roof truss 701 is supported above the main beam 302. Then, purlin 702 is installed on the upper end of the roof truss 701. S4. External enclosure installation: Cold storage panel uprights 801 are installed around the inner steel frame structure. The lower end of the cold storage panel uprights 801 is inside the angle steel. The cold storage panel top 802 is laid on the upper end of the inner steel frame structure. Both the cold storage panel uprights 801 and the cold storage panel top 802 have thermal insulation structures and their outer surfaces are steel structures. The cold storage panel uprights 801 and the cold storage panel top 802 constitute the external thermal insulation structure. The upper end of the thermal break bridge support 6 extends above the cold storage panel top 802. The color steel plate 7 is installed on the purlin 702 and covers the external thermal insulation structure. There is a ventilation gap between the color steel plate 7 and the cold storage panel top 802. One side of the cold storage panel uprights 801 has a sliding door 8011. S5. Ground installation: Lay floor modules 9 with heat insulation function on hardened ground 1. The upper part of the floor modules 9 supports shelves and handling equipment. S6. Equipment installation: Install refrigeration equipment, and install the refrigeration equipment's air cooler 501 on the main beam 302.

[0026] In use, the main structure of the modular cold storage can be completed through the above steps, forming a cold storage with an internal steel frame structure supporting an external insulation structure. During construction, the space supported by two rows of steel columns 301 is considered as a minimum volume unit. Multiple rows of steel columns 301 can be selected according to volume requirements (the diagram shows six rows and three columns of steel columns 301, which are assembled from five minimum volume units; in the three columns of steel columns 301, the middle steel column 301 is used to increase support stability for larger volumes). The precast concrete component 101 is fixed on the hardened ground 1, and the upper connecting sleeve 102 fixes the steel columns 301 as the main support structure. The main beam 302 is installed in a ring, connecting the upper ends of two adjacent steel columns 301 to form a stable frame structure with high support stability.

[0027] After the installation of steel columns 301, main beams 302, and roof trusses 701 and purlins 702 is completed, the main steel frame support structure is assembled. The cold storage panel uprights 801 and roof panel 802 provide thermal insulation to the sides and top. Both the uprights and roof panels 801 and 802 are made of steel with built-in protective surfaces. The color steel plate 7 provides sunshade and rain protection from above, while allowing for heat dissipation through ventilation gaps. The sliding door 8011 on one side of the cold storage panel upright 801 has an opening size sufficient for the entry and exit of conventional handling equipment.

[0028] Floor module 9 can be assembled from standard modules and the joints can be treated with conventional insulation measures. It can also be laid layer by layer in a multi-layer structure, allowing for detachable assembly. It has both insulation and good support strength, and can withstand the crushing of forklifts and other handling equipment, as well as the weight of tall shelves. It is convenient for building large cold storage facilities and is suitable for storing and transporting high-capacity goods.

[0029] The corresponding equipment can be installed last. For example, refrigeration-related equipment, such as the air cooler 501, can be hoisted onto the main beam 302. The external insulation structure covers the internal space, and the hoisting mechanism of the air cooler 501 does not need to pass through the external insulation structure, thus reducing cold bridges. Other control equipment related to the operation of the cold storage can also be installed last.

[0030] Furthermore, in step S1, the precast concrete components 101 are distributed at standard intervals, the lower part of the steel column 301 is detachably connected to the connecting sleeve 102 by bolt assembly, and the angle iron 2 is connected to the precast concrete components 101 by expansion tube.

[0031] In use, the steel columns 301 and main beams 302 in the internal steel frame structure are both steel pipe structures, allowing for standardized length settings. The layout of the precast concrete components 101 accommodates the installation positions of the steel columns 301, distributed at standardized intervals to form a standardized assembly method. Disassembly and reassembly are performed according to standards, facilitating reassembly and volume adjustment. This standardization allows the internal space to meet the modular requirements of general shelving systems according to national and industry standards, resulting in more rational space adaptability and reduced waste of shelving space. The steel columns 301 and connecting sleeves 102 are detachably connected for easy assembly and disassembly. The angle iron 2 and precast concrete components 101 can be fixed to the hardened ground 1 or are detachable structures.

[0032] Furthermore, in step S2, the connecting component is as follows: the lower end of the main beam sleeve 401 is detachably connected to the upper end of the main beam 302, and the upper end is detachably connected to the cold-break bridge support 6. Insertion parts 4011 are provided around the perimeter according to the position and number of the main beams 302 to be connected, and the insertion parts 4011 are detachably connected to the main beam 302.

[0033] When using, such as Figure 5 As shown, the upper end of the steel column 301 is detachably connected to the main beam 302 through the main beam sleeve 401. The connector can be a standard part. Select the appropriate connector at the corresponding position to connect the steel column 301 and the corresponding number of main beams 302. There are three main types of connectors.

[0034] Furthermore, after the main beam 302 is installed in step S2, a secondary beam 303 is installed between the opposing main beams 302. Installation holes are reserved on the main beam 302, and the secondary beam sleeve 402 is fixed to the main beam 302 through the installation holes by bolt assembly. The end of the secondary beam 303 is fixed to the secondary beam sleeve 402 by bolt assembly.

[0035] In use, the main beam 302 is connected to the secondary beam 303, which enhances the support stability of the internal steel frame structure. The secondary beam 303 can also be used to hoist corresponding equipment. The main beam 302 is detachably connected to the end of the secondary beam 303 via the secondary beam sleeve 402, facilitating assembly and disassembly, reducing the number of parts, and promoting standardized operation.

[0036] Both the insertion part 4011 of the main beam sleeve 401 and the insertion part 4011 of the secondary beam sleeve 402 are open at the top. The main beam 302 or the secondary beam 303 can be inserted into the insertion part 4011 from above. The insertion part 4011 supports the main beam 302 or the secondary beam 303 from below, and at the same time, it semi-encloses and fixes the main beam 302 or the secondary beam 303.

[0037] Furthermore, after step S2 and before step S6, an equipment bracket 403 is installed on the main beam 302. The main beam 302 has pre-drilled mounting holes. The secondary beam sleeve 402 is detachably connected to the main beam 302, and the equipment bracket 403 is detachably connected to the secondary beam sleeve 402.

[0038] In use, the air cooler 501 can be installed by fixing it to the main beam 302 via the equipment bracket 403. The equipment bracket 403 is horizontally fixed to the main beam 302, and the air cooler 501 is installed to the equipment bracket 403 using bolts and other connecting parts. The equipment bracket 403 does not serve as a supporting component of the internal steel frame structure; it is only used for hoisting the air cooler 501. Therefore, it can be installed at any time after the main beam 302 is installed, allowing workers to divide the work and shorten the installation cycle.

[0039] As a standard component for connection, the secondary beam sleeve 402 also has a plug-in part 4011, which allows for detachable connection with the equipment, making installation quick and convenient.

[0040] Furthermore, after step S2 and after the installation of the secondary beam 303, the aluminum busbar 502 and / or the lamp 503 are hoisted. The main beam 302 and the secondary beam 303 have reserved installation holes for hoisting the aluminum busbar 502 and / or the lamp 503.

[0041] When in use, if equipment such as aluminum busbars 502 and lighting fixtures 503 need to be installed inside the cold storage, various installation holes are reserved on the main beam 302 and secondary beam 303 according to the standardized layout for suspending aluminum busbars 502 or installing lighting fixtures 503. At the same time, the layout of the installation holes is adapted to the corresponding main beam sleeve 401 or secondary beam sleeve 402, forming a standardized process. During the actual assembly process, the appropriate installation holes can be selected for connection.

[0042] Furthermore, in step S5, the floor module 9 has a layered structure, consisting of a moisture-proof and vapor-barrier membrane 901, several layers of high-strength extruded insulation board 902, a waterproof and breathable membrane 903, and a non-slip high-strength bamboo plywood 904 from bottom to top. The non-slip high-strength bamboo plywood 904 is used to support handling tools and shelves. The side of the floor module 9 abuts against the lower inner side of the cold storage panel upright 801.

[0043] When using, such as Figure 13-14As shown, the floor module 9, through material selection and layered laying, achieves good thermal insulation and support functions, meeting the requirements for ground insulation and the strength to support forklifts and other handling equipment. The high-strength extruded polystyrene insulation board 902 has high support strength and can support the anti-slip high-strength bamboo plywood 904. The anti-slip high-strength bamboo plywood 904 provides sufficient support and good anti-slip properties to facilitate movement by people or forklifts.

[0044] The outer perimeter of the floor module 9 can contact the lower inner side of the cold storage panel 801 through a wooden board structure, reducing heat transfer.

[0045] Furthermore, several layers of high-strength extruded polystyrene insulation boards 902 are laid in a staggered manner between the upper and lower layers. The floor joists 905 are laid on one of the layers of high-strength extruded polystyrene insulation boards 902 and are flush with the uppermost layer of high-strength extruded polystyrene insulation boards 902. Anti-slip high-strength bamboo plywood 904 is installed on the floor joists 905.

[0046] In use, the floor joists 905 can be arranged at intervals within the top layer of high-strength extruded polystyrene insulation boards 902 to support the installation of anti-slip high-strength bamboo plywood 904. The high-strength extruded polystyrene insulation boards 902 can be in two or more layers, with staggered seams between layers reducing direct heat transfer. The dimensions of the high-strength extruded polystyrene insulation boards 902 can be set in conjunction with the dimensions of the floor joists 905 to achieve full coverage.

[0047] Furthermore, the steel columns 301, main beams 302, and secondary beams 303 are each a different color, which is used to quickly distinguish the steel columns 301, main beams 302, and secondary beams 303 during construction, and to install them according to the installation steps.

[0048] When using, such as Figure 15-16 As shown, steel column 301, main beam 302 and secondary beam 303 can all be square tube structures, and at least the main beam 302 and secondary beam 303 are similar in size. During assembly, it is not convenient to classify them by shape and size. By setting three colors for differentiation, it is easier for construction personnel to quickly distinguish them and organize the construction in a more orderly manner.

[0049] The internal steel frame structure and other connection points adopt detachable connection structures, which can be used with existing bolt assemblies. Furthermore, the bolt assembly standards can be standardized, making installation more convenient and faster, and also facilitating reuse.

[0050] Furthermore, the thermal break support 6 is a wooden column, and in step S3, the thermal break support 6 is detachably connected to the roof truss 701 by bolt assembly.

[0051] The thermal break support 6 has poor thermal conductivity, but can stably support the roof truss 701. In this embodiment, wooden columns can be used, with the roof truss 701 inserted into the wooden columns and fixed by bolts, which can stably support the roof truss 701 and the color steel plate 7. The wooden boards pass through the cold storage top plate 802, and conventional insulation measures can be used.

[0052] It is understood that the present invention has been described through some embodiments, and those skilled in the art will recognize that various changes or equivalent substitutions can be made to these features and embodiments without departing from the spirit and scope of the invention. Furthermore, under the teachings of the present invention, these features and embodiments can be modified to adapt to specific situations and materials without departing from the spirit and scope of the invention. Therefore, the present invention is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application are within the protection scope of the present invention.

Claims

1. A modular cold storage construction method, characterized in that, Includes the following steps: S1. Steel column fixing: Several precast concrete components are distributed at intervals on the hardened ground. The connecting sleeves on the upper part of the precast concrete components extend beyond the hardened ground. Angle irons along the square frame are fixed to the upper end of the precast concrete components. A vertical steel column is fixed on each connecting sleeve. S2. Main beam installation: A connector is installed at the top of each steel column. The end of the main beam is fixedly connected to the connector. The main beam connects two adjacent steel columns through the connector. A thermal break support is fixed at the top of the connector. The steel columns and the main beam form an internal steel frame structure. S3. Roof truss and purlin installation: Several roof trusses are spaced apart. The upper end of the thermal break support is connected to the lower end of the roof truss. The roof truss is supported above the main beam. Then, purlins are installed on the upper end of the roof truss. S4. External enclosure installation: Cold storage panels are installed around the inner steel frame structure. The lower end of the cold storage panels is inside the angle steel. The cold storage panel top is laid on the upper end of the inner steel frame structure. Both the cold storage panels and the cold storage panel top have insulation structures and their outer surfaces are steel structures. The cold storage panels and the cold storage panel top form the external insulation structure. The upper end of the thermal break bridge support extends to the top of the cold storage panel. The color steel plate is installed on the purlins and covers the external insulation structure. There is a ventilation gap between the color steel plate and the cold storage panel top. One side of the cold storage panel has a sliding door. S5. Ground installation: Lay floor modules with heat insulation function on hardened ground. The upper part of the floor modules supports shelves and handling equipment. S6. Equipment installation: Install refrigeration equipment, and install the refrigeration equipment's air cooler on the main beam.

2. The modular cold storage construction method according to claim 1, characterized in that, In step S1, the precast concrete components are distributed at standard intervals, the lower part of the steel column is detachably connected to the connecting sleeve by bolt assembly, and the angle iron is connected to the precast concrete components by expansion tube.

3. The modular cold storage construction method according to claim 1, characterized in that, In step S2, the connector is as follows: the lower end of the main beam sleeve is detachably connected to the upper end of the main beam, the upper end is detachably connected to the cold-break bridge support, and plug-in parts are set around the perimeter according to the position and number of the main beams to be connected, and the plug-in parts are detachably connected to the main beams.

4. The modular cold storage construction method according to claim 1, characterized in that, After the main beam is installed in step S2, secondary beams are installed between the opposite main beams. Installation holes are reserved on the main beams, and the secondary beam sleeves are fixed to the main beams through the installation holes by bolt assemblies. The ends of the secondary beams are fixed to the secondary beam sleeves by bolt assemblies.

5. The modular cold storage construction method according to claim 4, characterized in that, After step S2 and before step S6, an equipment bracket is installed on the main beam. The main beam has pre-drilled mounting holes and is detachably connected to the main beam using a secondary beam sleeve. The equipment bracket is detachably connected to the secondary beam sleeve.

6. The modular cold storage construction method according to claim 4, characterized in that, After step S2 and after the secondary beam is installed, the aluminum busbar and / or lighting fixtures are hoisted. The main beam and secondary beam have pre-drilled mounting holes for hoisting the aluminum busbar and / or lighting fixtures.

7. The modular cold storage construction method according to claim 1, characterized in that, In step S5, the floor module has a layered structure, consisting of a moisture-proof and vapor-barrier membrane, several layers of high-strength extruded insulation board, a waterproof and breathable membrane, and a non-slip high-strength bamboo plywood from bottom to top. The non-slip high-strength bamboo plywood is used to support handling tools and shelves. The side of the floor module abuts against the lower inner side of the cold storage panel upright.

8. A modular cold storage construction method according to claim 7, characterized in that, Several layers of high-strength extruded polystyrene insulation boards are laid in a staggered manner between the upper and lower layers. The floor joists are laid on one of the high-strength extruded polystyrene insulation boards and are flush with the uppermost high-strength extruded polystyrene insulation board. Anti-slip high-strength bamboo plywood is installed on the floor joists.

9. A modular cold storage construction method according to claim 4, characterized in that, The steel columns, main beams, and secondary beams are each a different color to help quickly distinguish them during construction and to facilitate installation according to the specified steps.

10. A modular cold storage construction method according to claim 1, characterized in that, The thermal break bridge support is a wooden column. In step S3, the thermal break bridge support is detachably connected to the roof truss via bolt assemblies.

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