CN110904781B - Structure and method for paving refrigeration pipeline of ice rink - Google Patents
Structure and method for paving refrigeration pipeline of ice rink Download PDFInfo
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- CN110904781B CN110904781B CN201910766114.XA CN201910766114A CN110904781B CN 110904781 B CN110904781 B CN 110904781B CN 201910766114 A CN201910766114 A CN 201910766114A CN 110904781 B CN110904781 B CN 110904781B
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- 238000000034 method Methods 0.000 title claims abstract description 23
- 238000005057 refrigeration Methods 0.000 title claims abstract description 19
- 239000007788 liquid Substances 0.000 claims abstract description 76
- 238000012360 testing method Methods 0.000 claims description 38
- 238000003466 welding Methods 0.000 claims description 16
- 229910052751 metal Inorganic materials 0.000 claims description 14
- 239000002184 metal Substances 0.000 claims description 14
- 238000001514 detection method Methods 0.000 claims description 13
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 12
- 239000004033 plastic Substances 0.000 claims description 10
- 229920003023 plastic Polymers 0.000 claims description 10
- 239000005060 rubber Substances 0.000 claims description 10
- 239000002245 particle Substances 0.000 claims description 9
- 238000005452 bending Methods 0.000 claims description 8
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 claims description 6
- 229910052757 nitrogen Inorganic materials 0.000 claims description 6
- 239000010935 stainless steel Substances 0.000 claims description 6
- 229910001220 stainless steel Inorganic materials 0.000 claims description 6
- 238000004513 sizing Methods 0.000 claims description 5
- 238000004519 manufacturing process Methods 0.000 claims description 4
- 238000012545 processing Methods 0.000 claims description 4
- 239000004576 sand Substances 0.000 claims description 4
- 239000004575 stone Substances 0.000 claims description 4
- 229910052786 argon Inorganic materials 0.000 claims description 3
- 238000007664 blowing Methods 0.000 claims description 3
- 238000005520 cutting process Methods 0.000 claims description 3
- 239000001307 helium Substances 0.000 claims description 3
- 229910052734 helium Inorganic materials 0.000 claims description 3
- SWQJXJOGLNCZEY-UHFFFAOYSA-N helium atom Chemical compound [He] SWQJXJOGLNCZEY-UHFFFAOYSA-N 0.000 claims description 3
- 238000004806 packaging method and process Methods 0.000 claims description 3
- 238000003825 pressing Methods 0.000 claims description 3
- 239000002023 wood Substances 0.000 claims description 3
- 230000015572 biosynthetic process Effects 0.000 abstract description 4
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 13
- 229910002092 carbon dioxide Inorganic materials 0.000 description 6
- 239000001569 carbon dioxide Substances 0.000 description 6
- 238000010276 construction Methods 0.000 description 6
- 239000010410 layer Substances 0.000 description 6
- 239000000463 material Substances 0.000 description 4
- 230000008569 process Effects 0.000 description 3
- 229910001294 Reinforcing steel Inorganic materials 0.000 description 2
- 238000005266 casting Methods 0.000 description 2
- 239000003507 refrigerant Substances 0.000 description 2
- 239000004793 Polystyrene Substances 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 230000002528 anti-freeze Effects 0.000 description 1
- 239000010426 asphalt Substances 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 235000011089 carbon dioxide Nutrition 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 229920001903 high density polyethylene Polymers 0.000 description 1
- 239000004700 high-density polyethylene Substances 0.000 description 1
- 238000003698 laser cutting Methods 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229920002223 polystyrene Polymers 0.000 description 1
- 239000011241 protective layer Substances 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000012791 sliding layer Substances 0.000 description 1
- 238000012549 training Methods 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
- E01C13/00—Pavings or foundations specially adapted for playgrounds or sports grounds; Drainage, irrigation or heating of sports grounds
- E01C13/10—Pavings or foundations specially adapted for playgrounds or sports grounds; Drainage, irrigation or heating of sports grounds for artificial surfaces for outdoor or indoor practice of snow or ice sports
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L1/00—Laying or reclaiming pipes; Repairing or joining pipes on or under water
- F16L1/024—Laying or reclaiming pipes on land, e.g. above the ground
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Mechanical Engineering (AREA)
- Sewage (AREA)
Abstract
The invention discloses a structure and a method for paving a refrigeration pipeline of an ice rink. The structure comprises a branch pipe, a branch pipe bracket, a header pipe and a main pipe, wherein the branch pipe is connected to the header pipe, and the header pipe is connected to the main pipe; the header comprises a liquid supply header and a liquid return header, and the liquid supply header and the liquid return header are both arranged in the channel; the branch pipes and the branch pipe supports are buried in the concrete blocks, liquid inlets of the branch pipes are connected to the liquid supply header, and liquid outlets of the branch pipes are connected to the liquid return header. The invention can ensure that the whole system of the ice rink has no leakage and ensure that the formation of the ice layer of the ice rink is completed within a certain time.
Description
Technical Field
The invention relates to the field of ice rink construction, in particular to an ice rink refrigeration pipeline laying structure and an ice rink refrigeration pipeline laying method.
Background
The sports on ice is widely favored by people, and the skating rink is a common field for large sports games, and has higher requirements on safety and timeliness of manual ice making.
How to ensure that the whole system of the refrigeration pipeline of the ice rink is free from leakage and can meet the requirement of ice making in a certain time becomes a problem to be solved at present.
Disclosure of Invention
The invention provides a structure and a method for paving a refrigeration pipeline of a skating rink, aiming at the problems in the prior art.
The invention provides a refrigeration pipeline laying structure of a skating rink, which is divided into a plurality of areas, a channel is arranged between the two areas and/or at the edge position of the skating rink at the joint of the two areas, the structure comprises a branch pipe, a branch pipe bracket, a branch pipe and a main pipe, the branch pipe is connected to the branch pipe, and the branch pipe is connected to the main pipe; the header comprises a liquid supply header and a liquid return header, and the liquid supply header and the liquid return header are both arranged in the channel; the branch pipes and the branch pipe supports are buried in the concrete blocks, liquid inlets of the branch pipes are connected to the liquid supply header, and liquid outlets of the branch pipes are connected to the liquid return header.
Optionally, the branch pipe is of a U-shaped structure, and the liquid inlet and the liquid outlet are respectively connected to a liquid supply header and a liquid return header of the same channel; or the liquid inlet and the liquid outlet are respectively connected to the liquid supply header and the liquid return header in different channels.
Optionally, a flexible support is disposed in the channel, the flexible support including at least one or more of: sand, stone particles, rubber particles, plastic particles, a plastic bracket and a rubber bracket, and a metal cover plate is paved at the upper end of the trench.
Optionally, the branch pipes, the branch pipe supports, the header pipe and the main pipe are made of metal, and the diameters of the cut connecting holes on the header pipe are 0.1-0.3mm larger than the diameters on the branch pipes.
Optionally, an expansion joint is arranged between the concrete blocks and between the concrete and the edge of the ice rink, rubber or plastic is filled in the expansion joint, a metal cover plate is arranged at the upper end of the expansion joint, and bending is arranged on the metal cover plate.
Optionally, at least one or several of the following devices are further disposed in the channel and the machine room: pressure detection device, carbon dioxide concentration detection device, exhaust device and air supply device.
Optionally, the diameter of the pipe of the branch pipe is 16-24mm, and the diameter of the header pipe is 80-120mm.
Optionally, a safety control valve is arranged on the header pipe of each region, a safety control valve is also arranged on the main pipe, a three-way valve is also arranged in front of the safety control valve, and a telescopic bend is also arranged on the main pipe.
The invention further provides a method for paving the refrigerating pipeline of the ice rink, which comprises the following steps of constructing the ice rink in a sectional manner according to the sequence from inside to outside; the method comprises the following steps:
step 1), straightening and cutting the branch pipes, and bending the branch pipes by adopting a sizing die;
step 2), fixing the branch pipes on the branch pipe supports, and pouring concrete to form the concrete blocks;
step 3), forming the channel according to the concrete blocks and the ice rink, and paving the header pipe in the channel;
step 4), the liquid inlets of the branch pipes are welded on the liquid supply header, and the liquid outlets of the branch pipes are welded on the liquid return header;
step 5) connecting the header to the main pipe and connecting the main pipe to a machine room by hoisting.
Optionally, before the step 1), the method further includes: and manufacturing the branch pipes by adopting stainless steel coil pipes, packaging by adopting a wood hub, pressurizing and detecting leakage in a processing plant, maintaining the pressure by 3-5MPa, and transporting to an ice rink.
Optionally, in the step 4), a tool and argon arc welding are adopted between the branch pipe and the collecting pipe for welding, and an X-ray flaw detection is performed on the welding seam, and then dirt blowing, pressing and pressure maintaining are performed.
Optionally, after the step 5), the method further includes: and performing high-pressure resistance test, leakage test and vacuum pressure maintaining test on the pipeline system, wherein the pressure of the high-pressure resistance test and the leakage test is 8-16MPa, and the pressure maintaining time is 36-60 hours.
Optionally, the specific steps of the high-pressure test, the leakage test and the vacuum pressure maintaining test are as follows: firstly, carrying out nitrogen high-pressure detection twice on a pipeline system, then carrying out vacuum pressure maintaining test once, then carrying out nitrogen high-pressure test for the third time, then carrying out helium leakage test twice, and finally carrying out vacuum pressure maintaining test once.
The ice rink of the invention has the following advantages:
the whole system of the pipeline of the ice rink is ensured to be free from leakage through concrete block burying, welding process and the like; the pipeline laying structure and the pipeline laying method can ensure that the formation of the ice layer of the ice rink is completed within a certain time, and the safety and timeliness of large-scale sports games, entertainment and other projects are met.
The foregoing description is only an overview of the present invention, and is intended to be implemented in accordance with the teachings of the present invention in order that the same may be more clearly understood and to make the same and other objects, features and advantages of the present invention more readily apparent.
Drawings
FIG. 1 is a schematic illustration of a pipelaying partial plane in accordance with an embodiment of the invention;
FIG. 2 is an enlarged view of a portion according to FIG. 1;
FIG. 3 is a schematic illustration of a pipe lay zone division according to one embodiment of the present invention;
FIG. 4 is a schematic illustration of a method of pipelining in accordance with one embodiment of the present invention.
In the figure: 1. a branch pipe; 2. a branch pipe bracket; 3. a groove; 4. a header; 5. a concrete block; 6. expansion joints.
Detailed Description
Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.
Example 1
1-3, wherein FIG. 1 is a schematic illustration of a partial plan view of a pipe lay according to one embodiment of the present invention, and FIG. 3 is a schematic illustration of a division of a pipe lay area according to one embodiment of the present invention; in order to improve the construction efficiency of the ice rink, shorten the construction time thereof, and improve the formation time of the ice layer, the ice rink is divided into a plurality of regions in this embodiment, as shown in fig. 3, the ice rink may be divided into 9 regions.
At least between part of the two areas and/or at the position of the side edge of the skating rink at the junction of the two areas, a channel 3 is arranged, wherein the paving structure of the skating rink specifically comprises: the branch pipes 1, the branch pipe brackets 2, the header 4 and the main pipe, and the branch pipes 1 are connected to the header 4 by welding, splicing, pipe joint connection and the like, and then the header 4 is connected to the main pipe, and the main pipe is connected to the machine room through a piping shaft at the bottom of the ice rink. The materials of the various pipelines can be special high-quality stainless steel, and other alternative metal materials can be selected.
In order to realize normal refrigeration operation, the header is divided into a liquid supply header and a liquid return header, and the liquid supply header and the liquid return header are both arranged in a channel; the branch pipes and branch pipe supports are embedded in the concrete block 5, for example, by casting, wherein all pipes in the concrete coverage area are strictly controlled to be free of joints and no weld joints or weld junctions. And the liquid inlet of the branch pipe is connected with the liquid supply header, the liquid outlet of the branch pipe is connected with the liquid return header, and the connection mode can be welding or pipe joint connection.
In a word, the technical scheme of the embodiment of the invention ensures that the whole pipeline system of the ice rink is free from leakage through concrete block embedding, welding process and the like; and the pipeline laying structure can ensure that the formation of the ice layer of the ice rink is completed within a certain time, and the safety and timeliness of large-scale sports games, entertainment and other projects are met.
In a preferred embodiment, the branch pipe 1 has a U-shaped structure, and the liquid inlet and the liquid outlet are respectively connected to a liquid supply header and a liquid return header of the same channel 3; or the liquid inlet and the liquid outlet are respectively connected to a liquid supply header and a liquid return header in different channels 3.
Under the condition that the branch pipe 1 is ensured to have no welded junctions or joints and the like at the part buried in the concrete block 5, the branch pipe is preferably bent into a U-shaped structure, and when the branch pipe is paved in the ice rink area 5-6, the liquid inlet and the liquid outlet of one branch pipe 1 are respectively connected with a liquid supply header and a liquid return header of the same channel, and two sections of the U-shaped of the branch pipe are adjacent, for example, 50-100mm; when the branch pipes are paved in the ice rink areas 3-4 and 7-8, the branch pipes can be paved along the two side edges of the ice rink respectively to form a large U-shaped structure, and the liquid inlet and the liquid outlet of the branch pipe 1 are respectively connected with a liquid supply header and a liquid return header in different channels.
In one embodiment, a flexible support is disposed within the channel, the flexible support comprising at least one or more of: sand, stone particles, rubber particles, plastic particles, a plastic bracket and a rubber bracket, and a metal cover plate is paved at the upper end of the trench.
In order to reduce the limitation on the header and the branch pipes, reduce the damage of the rigid connection to the branch pipes and the header, and reduce the damage of pipelines during refrigeration shrinkage, the header and the main pipe are prevented from being directly placed on the ground, the rigid connection is reduced, and the main pipe and the header are arranged in a flexible supporting, hanging and other modes, so that the header in the channel can be supported by materials such as sand, plastics or rubber in the embodiment.
In one embodiment, the material of the branch pipe, the branch pipe bracket, the header pipe and the main pipe is metal, and the header pipe and the main pipe are cut by a laser cutting machine when manufactured in a factory, and the diameter of the cut connecting hole on the header pipe is 0.1-0.3mm larger than the diameter on the branch pipe.
In a preferred embodiment, referring to fig. 2, expansion joints are arranged between the concrete blocks and between the concrete and the edge of the ice rink, rubber or plastic is filled in the expansion joints, a metal cover plate is arranged at the upper end of the expansion joints, and bending is arranged on the metal cover plate. The material of the metal cover plate can be stainless steel or alloy aluminum and the like, and the metal cover plate can be used as a cold bridge to transfer heat, and can also deform by being matched with the expansion joint to realize flexible connection and ensure the sealing performance of the expansion joint.
In one embodiment, at least one or several of the following devices are also provided in the channel and the machine room: pressure detection device, carbon dioxide concentration detection device, exhaust device and air supply device. In order to ensure the safety of the channel and the machine room and prevent the damage caused by refrigerant leakage, a pressure detection device, a carbon dioxide concentration detection device, an exhaust device and an air supply device can be arranged in the machine room and the channel, and when the carbon dioxide concentration of the internal air is detected to exceed the standard, the exhaust device or the air supply device is automatically started, so that the machine room is ensured to timely supply fresh air.
In a specific embodiment, the diameter of the pipe of the branch pipe is 16-24mm, and the diameter of the header pipe is 80-120mm. Of course, the diameter of each pipe may be set according to the actual situation of the ice rink, or may not be specifically limited.
In a specific embodiment, a safety control valve is arranged on the header pipe of each region, a safety control valve is also arranged on the main pipe, a three-way valve is also arranged in front of the safety control valve, and a telescopic bend is also arranged on the main pipe.
Each individual unit is provided with a safety valve dedicated to that part, as is the common line. The shutoff valve is an electric valve, an independent safety control processing system is provided, the main control system is provided with a UPS standby power supply, the normal operation of the system is guaranteed once the accident is caused under the condition of overall power failure, the emergency switch Duan Famen requires the electric and manual operation, the refrigeration host has the function of starting and recovering carbon dioxide under the emergency condition, and the refrigeration host also has the functions of maintaining the pressure of the system, the connecting pipeline and the pressure container during the operation stop period of the ice rink.
When the safety valve is opened, the safety valve is directly discharged out of the room, and the pipeline cannot be connected outside the outlet of the safety valve, so that potential safety hazards caused by the blockage of the pressure relief pipeline of the safety valve due to the generation of dry ice after the carbon dioxide erupts are avoided. The safety valve cannot be closed after pressure is restored, so two three-way valves are arranged in front of the safety valve.
The 170mm antifreeze concrete block is ensured to be in a free state, and the pipeline is not damaged in the shrinkage deformation process of refrigeration. And the detection pipeline has no hard connection part, so that concrete can be poured under the condition of no loss. The telescopic bend is required to be installed on a long connecting pipeline of the machine room so as to prevent the pipeline from being strained by cold shrinkage or damage a hanger bracket and the like, the pipeline of the machine room is densely arranged, the pipeline route is planned, and each welded junction is ensured to be normally welded without laying the pipeline on the ground.
The portable respirator can be arranged in the machine room, and the on-duty personnel can be proficiently used under the condition of leakage after training, so that the personnel can be safely evacuated.
In one embodiment, to ensure the reliability of the foundation, the concrete block is further provided with an HDPE sliding layer, a fine stone concrete protective layer, a modified asphalt waterproof layer, a waterproof breathable film, an extruded polystyrene board moisture-retaining layer, a steam barrier film and a base layer at one time.
Example 2
FIG. 4 is a schematic illustration of a pipe laying method according to one embodiment of the invention; according to the invention, the ice rink is constructed in sections according to the sequence from inside to outside, for example, the ice rink is constructed according to the sequence from 5 areas to 6 areas to 7 areas to 8 areas to 2 areas to 1 areas to 4 areas to 3 areas; the method comprises the following steps:
step 1), straightening and cutting the branch pipes, and bending the branch pipes by adopting a sizing die.
In the concrete construction, the construction is strictly carried out according to the related standards and specifications of the refrigeration pipeline; using professional equipment to nondestructively straighten a circular tube, and sizing prefabricated branch tubes, a collecting tube and a main tube; and (3) the special sizing die is used for bending, so that the accurate length and the bending quality are ensured.
And 2) fixing the branch pipes on the branch pipe supports, and casting concrete to form the concrete blocks.
Preferably, the branch pipe support can be used as a branch pipe support, can be used as a reinforcing steel bar to be added into a concrete block, and can be used for reinforcing the strength of concrete by adding other reinforcing steel bar structures.
And 3) forming the channel according to the concrete blocks and the ice rink, and paving the header pipe in the channel. The location and manner of the channel may be set according to the specific situation of the ice rink, and may not be specifically limited herein.
And 4) welding the liquid inlet of the branch pipe on the liquid supply header, and welding the liquid outlet of the branch pipe on the liquid return header.
The header and main pipe are cut using a laser cutter at the time of manufacture, the ice-making header is machined in the factory using a laser pipe cutter, preferably, the header pipes of D108 and D89 are cut with phi 18.2 and phi 20.2 holes at a spacing of 100mm. And the welding deformation is effectively controlled by adopting a special fixture in the welding construction of the header pipe and the branch pipe.
Step 5) connecting the header to the main pipe and connecting the main pipe to a machine room by hoisting.
The freedom degree of the header pipe and the main pipe is fully ensured, the pipeline is prevented from being damaged in refrigeration and other displacement, and flexible supporting or hoisting modes and the like can be adopted.
And after the pipeline connection is completed, the starting-up refrigeration is needed, and the pipeline is subjected to frost test. And after the pipeline pressure test is qualified, the refrigerant is filled for starting up operation, the tightness of the pipeline of the ice making system is detected, and no leakage of the pipeline is ensured.
In one embodiment, before the step 1), the method further comprises: and manufacturing the branch pipes by adopting stainless steel coil pipes, packaging by adopting a wood hub, pressurizing and detecting leakage in a processing plant, maintaining the pressure by 3-5MPa, and transporting to an ice rink. Wherein, the special high-quality stainless steel disc round pipe for refrigeration is preferably selected.
In one embodiment, in the step 4), the branch pipe and the header pipe are welded by adopting a tool and argon arc welding, and the welding seam is subjected to X-ray flaw detection, and then is subjected to dirt blowing, pressing and pressure maintaining, wherein the pressure of the pressure maintaining can be 3-5MPa.
In one embodiment, after said step 5), further comprising: and performing high-pressure resistance test, leakage test and vacuum pressure maintaining test on the pipeline system, wherein the pressure of the high-pressure resistance test and the leakage test is 8-16MPa, and the pressure maintaining time is 36-60 hours.
In one embodiment, the specific steps of the high pressure test, the leakage test and the vacuum pressure maintaining test are as follows: firstly, carrying out nitrogen high-pressure detection twice on a pipeline system, then carrying out vacuum pressure maintaining test once, then carrying out nitrogen high-pressure test for the third time, then carrying out helium leakage test twice, and finally carrying out vacuum pressure maintaining test once.
The foregoing is merely a specific embodiment of the invention and other modifications and variations can be made by those skilled in the art in light of the above teachings. It is to be understood by persons skilled in the art that the foregoing detailed description is provided for the purpose of illustrating the invention more fully, and that the scope of the invention is defined by the appended claims.
Claims (8)
1. A refrigeration pipeline laying structure of a skating rink, wherein the skating rink is divided into a plurality of pipeline laying areas, and a channel is arranged between two pipeline laying areas and/or at the edge position of the skating rink at the joint of the two pipeline laying areas; the header comprises a liquid supply header and a liquid return header, and the liquid supply header and the liquid return header are both arranged in the channel; the branch pipes and the branch pipe supports are buried in the concrete blocks, liquid inlets of the branch pipes are connected to the liquid supply header, and liquid outlets of the branch pipes are connected to the liquid return header;
the branch pipes and the branch pipe supports are embedded in the concrete block in a pouring mode, and all the pipelines in the coverage area of the concrete block are free of joints, welding seams or welded junctions;
a flexible support is disposed within the channel, the flexible support comprising at least one or more of: sand, stone particles, rubber particles, plastic particles, a plastic bracket and a rubber bracket, wherein a metal cover plate is paved at the upper end of the trench;
the concrete ice rink is characterized in that expansion joints are arranged between the concrete blocks and between the concrete and the edge of the ice rink, rubber or plastic is filled in the expansion joints, a metal cover plate is arranged at the upper end of the expansion joints, and bending is arranged on the metal cover plate.
2. The structure of claim 1, wherein the branch pipe has a U-shaped structure, and the liquid inlet and the liquid outlet are respectively connected to a liquid supply header and a liquid return header of the same channel; or the liquid inlet and the liquid outlet are respectively connected to the liquid supply header and the liquid return header in different channels.
3. The structure of claim 1, wherein the branch pipes, the branch pipe brackets, the header pipes and the main pipe are made of metal, and the diameters of the cut connecting holes on the header pipes are 0.1-0.3mm larger than the diameters on the branch pipes.
4. A method of laying the ice rink refrigeration pipelaying structure of claim 1, constructed in segments in the order of the pipelaying area of the ice rink from inside to outside; characterized in that the method comprises the following steps:
step 1), straightening and cutting the branch pipes, and bending the branch pipes by adopting a sizing die;
step 2), fixing the branch pipes on the branch pipe supports, and pouring concrete to form the concrete blocks;
step 3), forming the channel according to the concrete blocks and the ice rink, and paving the header pipe in the channel;
step 4), the liquid inlets of the branch pipes are welded on the liquid supply header, and the liquid outlets of the branch pipes are welded on the liquid return header;
step 5) connecting the header to the main pipe and connecting the main pipe to a machine room by hoisting.
5. The method of claim 4, further comprising, prior to said step 1): and manufacturing the branch pipes by adopting stainless steel coil pipes, packaging by adopting a wood hub, pressurizing and detecting leakage in a processing plant, maintaining the pressure by 3-5MPa, and transporting to an ice rink.
6. The method according to claim 4, wherein in the step 4), the branch pipe and the header pipe are welded by using a tool and argon arc welding, and the welding seam is subjected to X-ray flaw detection, and then is subjected to dirt blowing, pressing and pressure maintaining.
7. The method of claim 4, further comprising, after said step 5): and performing high-pressure resistance test, leakage test and vacuum pressure maintaining test on the pipeline system, wherein the pressure of the high-pressure resistance test and the leakage test is 8-16MPa, and the pressure maintaining time is 36-60 hours.
8. The method of claim 7, wherein the high pressure test, leak test and vacuum dwell test are performed as follows: firstly, carrying out nitrogen high-pressure detection twice on a pipeline system, then carrying out vacuum pressure maintaining test once, then carrying out nitrogen high-pressure test for the third time, then carrying out helium leakage test twice, and finally carrying out vacuum pressure maintaining test once.
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| CN201910766114.XA CN110904781B (en) | 2019-08-19 | 2019-08-19 | Structure and method for paving refrigeration pipeline of ice rink |
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| CN201910766114.XA CN110904781B (en) | 2019-08-19 | 2019-08-19 | Structure and method for paving refrigeration pipeline of ice rink |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU717208A1 (en) * | 1977-10-21 | 1980-02-25 | Центральный Научно-Исследовательский И Проектный Институт Типового И Экспериментального Проектирования Зрелищных, Спортивных И Административных Зданий И Сооружений Им.Б.С.Мезенцева | Artificial ice track |
| JPH0599547A (en) * | 1991-02-15 | 1993-04-20 | Pateine Shokai:Kk | Method of constructing sliding track for sleigh race course |
| KR101419014B1 (en) * | 2014-01-28 | 2014-07-16 | 주식회사 엠디텍 | Refigeration equipment building process and Refigeration equipment in ice rink |
| CN207376844U (en) * | 2018-02-01 | 2018-05-18 | 邱宏亮 | A kind of concrete extension joint protective device |
| CN108411734A (en) * | 2018-05-31 | 2018-08-17 | 北京华体创研工程设计咨询有限公司 | Icerink |
| CN109356409A (en) * | 2018-10-11 | 2019-02-19 | 金诺恒健体育发展(天津)有限公司 | A kind of class ice training court comprising safety device |
| CN212052181U (en) * | 2019-08-19 | 2020-12-01 | 魏惠兰 | Skating rink refrigeration pipeline laying structure and skating rink |
-
2019
- 2019-08-19 CN CN201910766114.XA patent/CN110904781B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU717208A1 (en) * | 1977-10-21 | 1980-02-25 | Центральный Научно-Исследовательский И Проектный Институт Типового И Экспериментального Проектирования Зрелищных, Спортивных И Административных Зданий И Сооружений Им.Б.С.Мезенцева | Artificial ice track |
| JPH0599547A (en) * | 1991-02-15 | 1993-04-20 | Pateine Shokai:Kk | Method of constructing sliding track for sleigh race course |
| KR101419014B1 (en) * | 2014-01-28 | 2014-07-16 | 주식회사 엠디텍 | Refigeration equipment building process and Refigeration equipment in ice rink |
| CN207376844U (en) * | 2018-02-01 | 2018-05-18 | 邱宏亮 | A kind of concrete extension joint protective device |
| CN108411734A (en) * | 2018-05-31 | 2018-08-17 | 北京华体创研工程设计咨询有限公司 | Icerink |
| CN109356409A (en) * | 2018-10-11 | 2019-02-19 | 金诺恒健体育发展(天津)有限公司 | A kind of class ice training court comprising safety device |
| CN212052181U (en) * | 2019-08-19 | 2020-12-01 | 魏惠兰 | Skating rink refrigeration pipeline laying structure and skating rink |
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