CN211571260U - Large artificial indoor ice rink - Google Patents
Large artificial indoor ice rink Download PDFInfo
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- CN211571260U CN211571260U CN201922460406.9U CN201922460406U CN211571260U CN 211571260 U CN211571260 U CN 211571260U CN 201922460406 U CN201922460406 U CN 201922460406U CN 211571260 U CN211571260 U CN 211571260U
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Abstract
The utility model relates to an ice rink construction technical field discloses an indoor ice rink of large-scale artifical. The utility model comprises a site foundation structure and an ice layer temperature control system; the ground foundation structure comprises a foundation bearing layer, a bottom plate heating layer, a steam barrier layer, a heat preservation layer, an isolation layer, a waterproof layer, a sliding layer, an ice plate fine leveling layer, an ice rink bearing layer and an ice layer from bottom to top; the heating layer of the bottom plate comprises a water supply main pipe, a water return main pipe, heating coils and a backfill layer covering the pipeline, wherein the heating coils are uniformly distributed and coiled on the upper surface of the basic bearing layer and are communicated with the water supply main pipe and the water return main pipe; the sliding layer comprises three layers of HDPE films which are overlapped up and down; the ice-plate fine leveling layer and the ice field bearing layer are both of reinforced concrete structures, and a refrigeration pipe network and an upper layer of reinforcing mesh are arranged in the ice field bearing layer from bottom to top. The utility model discloses can avoid the bearing stratum aversion, effectively prevent bottom structural slab dewfall, refrigeration effect is good.
Description
Technical Field
The utility model relates to an ice rink construction technical field especially relates to an indoor ice rink of large-scale artifical.
Background
Along with the popularization of the ice sports, the ice skating sports are not limited by seasons, indoor ice yards are produced at the same time, and the current artificial ice making technology is developed more and more mature.
The existing artificial ice making device is generally provided with a refrigeration pipe network below a bearing layer of an ice layer, one side of the ice field is provided with a refrigeration liquid supply main pipe and an air return main pipe, refrigeration calandria communication is adopted, heat exchange is carried out between a refrigeration medium in the refrigeration calandria and the bearing layer, the temperature of the bearing layer in direct contact with the ice layer is reduced, and then the freezing of the ice layer is realized.
However, in this way, the pressure-bearing layer directly contacting the ice layer may be displaced from the functional layers below due to expansion with heat and contraction with cold of the ice surface, and at the same time, the cold of the pressure-bearing layer may penetrate downward into the lower structural plate, causing condensation to form on the surface of the lower structural plate.
SUMMERY OF THE UTILITY MODEL
The utility model provides an avoid the bearing stratum aversion, prevent effectively that the bottom structural slab dewfall, the indoor ice rink of a large-scale artificial room that refrigeration effect is good.
The technical problem to be solved is that: the pressure bearing layer of the existing artificial ice making system, which is in direct contact with the ice layer, can displace with each functional layer below due to expansion with heat and contraction with cold of the ice surface, and meanwhile, the cold quantity of the pressure bearing layer can downwards permeate to the lower-layer structural plate, so that the surface of the lower-layer structural plate forms condensation.
In order to solve the technical problem, the utility model adopts the following technical scheme:
the utility model relates to a large artificial indoor ice rink, which comprises a field foundation structure and an ice layer temperature control system; the method is characterized in that: the ground foundation structure comprises a foundation bearing layer, a bottom plate heating layer, a steam barrier layer, a heat preservation layer, an isolation layer, a waterproof layer, a sliding layer, an ice plate fine leveling layer, an ice rink bearing layer and an ice layer from bottom to top; the heating layer of the bottom plate comprises a water supply main pipe, a water return main pipe, heating coils and a backfill layer covering the pipeline, the water supply main pipe and the water return main pipe are arranged in parallel in a main pipe ditch formed in the upper surface of the basic bearing layer, and the heating coils are uniformly distributed and coiled on the upper surface of the basic bearing layer and are communicated with the water supply main pipe and the water return main pipe; the sliding layer comprises three layers of HDPE films which are overlapped up and down; the ice sheet fine leveling layer and the ice field bearing layer are both of reinforced concrete structures, and a refrigeration pipe network and an upper layer of reinforcing mesh are arranged in the ice field bearing layer from bottom to top;
the ice layer temperature control system comprises an ice making system connected with a refrigeration pipe network, a first temperature sensor arranged in a bottom plate heating layer, a second temperature sensor arranged between an ice rink pressure bearing layer and an ice layer, an infrared temperature sensor arranged above the ice rink and a control system.
The utility model relates to an indoor rink of large-scale artifical, it is further, be responsible for the ditch and be located rink one side, heating coil's water inlet and water supply are responsible for the intercommunication, and the delivery port is responsible for the intercommunication with the return water, and the water inlet that the water supply was responsible for is through hot circulating pump and branch water collector intercommunication, and the delivery port that the return water was responsible for communicates with branch water collector, and hot circulating pump's signal input part is connected with control system's signal output part electricity.
The utility model relates to a large-scale artificial indoor ice rink, furthermore, the steam barrier is a PE film, and the adjacent PE films are connected in a lap joint way and are bonded and fixed; the heat preservation layer is a double-layer extruded sheet overlapped up and down, the extruded sheet of each layer is arranged in a staggered joint mode, the extruded sheet of the adjacent layer is arranged in a pressed joint mode, and the thickness of the heat preservation layer is not smaller than 100 mm.
The utility model relates to an indoor ice rink of large-scale artifical, it is further, the waterproof layer is not less than 4 mm's SBS modified asphalt waterproofing membrane for thickness, and the overlap joint is fixed between the adjacent waterproofing membrane, is provided with first protective layer between waterproof layer and the isolation layer, and first protective layer is not less than 50 mm's mortar layer for thickness.
The utility model relates to an indoor ice rink of large-scale artifical, it is further, the coating has lubricating oil between the adjacent HDPE membrane in the sliding layer, is provided with the second protective layer between sliding layer and the waterproof layer, and the second protective layer is thickness not less than 50 mm's mortar layer.
The utility model relates to an indoor ice field of large-scale artifical, it is further, the refrigeration pipe network is responsible for, return air main pipe, balanced pipe and freezes the calandria including supplying the liquid, freezes the calandria both ends and is responsible for and balanced union coupling with the liquid supply respectively, and balanced pipe and return air main pipe intercommunication set up, and the adjacent distance of freezing between the calandria is not more than 100mm, freezes the calandria and passes through the tube socket rack and fix on the smart flat bed of sleigh.
The utility model relates to an indoor ice field of large-scale artifical, it is further, first temperature sensor and second temperature sensor evenly arrange respectively in the ice field within range, infrared temperature sensor sets up the building top in the sky above the ice field, and infrared temperature sensor's head perpendicular to ice surface sets up, and first temperature sensor, second temperature sensor and infrared temperature sensor's signal output part is connected with control system's signal input part electricity respectively, and control system's signal output part is connected with system's electricity of making ice.
The utility model relates to a large-scale artifical indoor ice rink, further, the tube socket rack is the latticed structure that is formed by arranging horizontal tube socket strip frame and vertical support strip frame vertically and horizontally in a staggered manner, sets up on the ice sheet leveling layer, the horizontal tube socket strip frame top surface level is offered the tube seat that is used for the solid calandria of card, and the tube seat axis is perpendicular to the length direction setting of horizontal tube socket strip frame to with freeze the calandria one-to-one setting; the height of the longitudinal support bar rack is higher than that of the transverse pipe seat bar rack, and the upper layer of steel mesh is arranged above the longitudinal support bar rack.
The utility model relates to an indoor ice rink of large-scale artifical, it is further, ice making system is transcritical CO2An ice making system.
The utility model relates to an indoor ice rink of large-scale artifical compares with prior art, has following beneficial effect:
the utility model discloses the ice rink is provided with the bottom plate zone of heating in basic bearing layer top, heats this layer, prevents that the structure bottom plate in the ice surface scope from crossing low production frost heaving or dewfall because of the temperature to set up temperature sensor in this layer, be connected with control system, this intraformational temperature of real time monitoring, nimble adjustment heating degree, economic efficient ensures the heating effect, and the practicality is strong.
The utility model reserves the space for displacement of expansion with heat and contraction with cold around the ice rink, and is provided with the sliding layer, and is laid by overlapping three PE films, so that the friction resistance of the concrete surface is reduced when displacement is carried out, the concrete surface moves uniformly, and the probability of cracks is greatly reduced; and lubricating oil is evenly applied with a brush between every layer and the reinforcing slide effect plays the upper sliding flexible and lower floor and keeps apart and the effect that does not influence each other to improve slip efficiency greatly, effectively avoided the ice surface bearing layer concrete to appear the crack under the effect of expend with heat and contract with cold phenomenon.
The following will further explain the large artificial indoor ice rink of the present invention with reference to the attached drawings.
Drawings
FIG. 1 is a schematic view of the cross-sectional structure of a large artificial indoor ice rink of the present invention;
FIG. 2 is a schematic structural view of a heating layer of a soleplate;
FIG. 3 is a schematic diagram of a refrigeration piping network;
FIG. 4 is a schematic view of the installation structure of the freeze-drain pipe;
FIG. 5 is a schematic view of the structure of the longitudinal support bar frame;
fig. 6 is a schematic diagram of an ice-making system.
Reference numerals:
11-a base bearing layer; 12-a soleplate heating layer; 121-main water supply pipe; 122-water return main pipe; 123-heating coils; 124-backfill layer; 125-heat circulation pump; 126-water diversion and collection device; 13-a vapour barrier; 14-insulating layer; 15-an isolation layer; 16-a waterproof layer; 17-a sliding layer; 18-fine leveling of ice plates; 19-a pressure bearing layer of the ice rink; 191-upper layer reinforcing mesh; 20-ice layer; 2-main pipe ditch; 31 — a first protective layer; 32-a second protective layer; 41-liquid supply main pipe; 42-air return main pipe; 43-balance tube; 44-freezing the calandria; 5-horizontal tube seat strip frame; 6-longitudinal support bar rack; 61-a support floor; a 62-pi shaped scaffold; 63-connecting rods; 71-CO2A transcritical direct cold compressor train; 72-a cooling tower; 73-high temperature heat recovery; 74-medium temperature heat recoverer; 75-low temperature heat recovery; 81-cooling the pipeline; 82-a water return pipeline; 83-cooling water circulation pump; 84-a water replenishing pipeline; 91-a filter; 92-softening the water tank.
Detailed Description
As shown in fig. 1 to 6, the utility model relates to a large-scale artificial indoor ice rink, which comprises a field foundation structure and an ice layer temperature control system.
The ground foundation structure comprises a foundation bearing layer 11, a bottom plate heating layer 12, a steam barrier layer 13, a heat preservation layer 14, an isolation layer 15, a waterproof layer 16, a sliding layer 17, an ice plate fine leveling layer 18, an ice field bearing layer 19 and an ice layer 20 from bottom to top, wherein the foundation bearing layer 11 is a reinforced concrete foundation structure, the surface flatness is within +/-10 mm, and the ground foundation structure is free of phenomena such as burrs, peeling, bulges, exposed ribs and the like.
As shown in fig. 2, the floor heating layer 12 includes a water supply main pipe 121, a water return main pipe 122, a heating coil 123 and a backfill layer 124 covering the pipelines, the water supply main pipe 121 and the water return main pipe 122 are arranged in parallel in the main pipe ditch 2, the width of the main pipe ditch 2 is 1500-1800mm, the depth is not less than 450mm, the main pipe ditch 2 is arranged at one side outside the ice rink and is arranged along the width direction of the ice rink; the water inlet of the heating coil 123 is communicated with the water supply main pipe 121, the water outlet is communicated with the water return main pipe 122, the heating coil 123 is uniformly distributed and coiled on the upper surface of the basic pressure bearing layer 11, the pipe orifice of the heating coil 123 is in hot melting connection with the water supply main pipe 121 or the water return main pipe 122, the water inlet of the water supply main pipe 121 is communicated with the water collecting and distributing device 126 through the heat circulating pump 125, the water outlet of the water return main pipe 122 is communicated with the water collecting and distributing device 126, the heat circulating pump 125 is electrically connected with the ice layer temperature control system, the diameters of the water supply main pipe 121 and the water return main pipe 122 are not smaller than 75; the backfill layer 124 is a fine sand layer with the thickness not less than 120mm and is formed by backfilling and tamping for protecting the heating pipeline.
The steam barrier layer 13 is used for preventing moisture under the base pressure-bearing layer 11 from moving upwards, is a PE film with the thickness not less than 0.2mm, is connected with adjacent PE films in an overlapping mode, is bonded and fixed, and ensures that the bonding is tight and does not leak steam.
The heat preservation layer 14 is upper and lower coincide's double-deck extruded sheet, and the extruded sheet is that compressive strength more than 300KPa, fire-retardant rating B1 level's polystyrene extrusion molding heated board, and the extruded sheet fissure of displacement on every layer sets up, and adjacent layer extruded sheet pressure joint sets up, and the thickness of heat preservation layer 14 is not less than 100mm, can effectively prevent the cold volume of ice surface downwards to transmit, influences the temperature of basic bearing layer 11, prevents that the roof of basic bearing layer 11 lower floor from appearing the dewfall phenomenon.
Isolation layer 15 is thickness not less than 0.2 mm's PE membrane, and adjacent PE membrane overlap joint is fixed with bonding, and the overlap joint width is not less than 200mm, ensures to bond closely to prevent that cement mortar, moisture etc. on upper strata from oozing into in the heat preservation 14, influence the adiabatic effect of heat preservation.
The waterproof layer 16 is a SBS modified asphalt waterproof coiled material of polyester tire with the thickness of not less than 4mm and the temperature of-25 ℃, adjacent waterproof coiled materials are lapped and fixed, the lapping width is not less than 100mm, and bonding or heating fusion connection is carried out to prevent moisture on the ice surface from channeling downwards to influence each functional layer on the lower layer. Be provided with first protective layer 31 between waterproof layer 16 and isolation layer 15, first protective layer 31 is the mortar layer that thickness is not less than 50mm, the mortar layer is C25 fine stone concrete mortar layer, be the protective layer of isolation layer 15, simultaneously as the basic unit of waterproof layer 16 again, can also lay phi 4@200mm x 200 mm's cold drawing steel wire net piece in first protective layer 31, with the intensity of reinforcing first protective layer 31, prevent the protective layer fracture, in order to make waterproof layer 16 and the better combination of the first protective layer 31 of below, still coat the cold bottom oil layer between waterproof layer 16 and the first protective layer 31.
The ice plate fine leveling layer 18 is of a reinforced concrete structure with the thickness not less than 60mm, is formed by pouring F150C 35 anti-freezing concrete, is internally provided with a 200 mm-200 mm bidirectional reinforcing mesh, is mainly used for leveling and providing a supporting foundation for the ice field bearing layer 19 above, the width of dividing joints in the ice plate fine leveling layer 18 is not less than 2cm, the distance between every two adjacent dividing joints is not more than 6m, and the dividing joints are communicated with the sliding layer 17 below.
The ice field bearing layer 19 is of a reinforced concrete structure with the thickness not less than 60mm and is formed by pouring F200C 35 antifreeze concrete, aggregate in the antifreeze concrete is fine stone, a refrigeration pipe network and an upper layer reinforcing mesh sheet 191 are arranged in the ice field bearing layer 19 from bottom to top, the upper layer reinforcing mesh sheet 191 is a reinforcing mesh sheet with the thickness of 100mm multiplied by 100mm, and the thickness of a protective layer of the upper layer reinforcing mesh sheet 191 is not less than 20 mm; an expansion joint is reserved between the edge of the ice field bearing layer 19 and the adjacent foundation structure on the periphery, the width of the expansion joint is 20-30mm, polyethylene foam plastics are filled in the expansion joint, and an expansion joint cover plate is arranged on the surface of the expansion joint, so that a displacement space for expansion with heat and contraction with cold is provided for the periphery of the ice field bearing layer 19.
As shown in fig. 3, the refrigeration pipe network includes a main liquid supply pipe 41, a main return air pipe 42, a balance pipe 43 and a freezing exhaust pipe 44, the main liquid supply pipe 41, the main return air pipe 42 and the balance pipe 43 are all copper pipes with a diameter not less than 100mm, and are embedded in the main pipe trench 2, and are arranged in parallel with the main water supply pipe 121 and the main return air pipe 122 in the bottom plate heating layer 12, and are arranged in parallel with the length direction of the main pipe trench 2, the end parts of the main liquid supply pipe 41 and the main return air pipe 42 are respectively communicated with the refrigeration system through valves, one end of the balance pipe 43 is communicated with an air inlet of the main return air pipe 42, so as to ensure that each part of the ice field is cooled uniformly; the return air dry pipe 42 is provided with a pressure gauge and an exhaust valve for monitoring and controlling the pressure stability in a refrigeration pipe network in real time, the freezing calandria 44 is a film-coated copper pipe with the diameter not larger than 16mm, two ends of the freezing calandria are respectively connected with the liquid supply main pipe 41 and the balance pipe 43, the freezing calandria 44 is connected with the liquid supply main pipe 41 and the balance pipe 43 by adopting a high-silver welding rod gas welding method, the distance between the adjacent freezing calandria 44 is not larger than 100mm, the two adjacent freezing calandria 44 are communicated through a U-shaped pipe to realize the return bending, the freezing calandria 44 is connected with the U-shaped pipe by adopting the gas welding method, the problem that no redundant calandria exists outside the boundary wall of an ice field and the calandria is arranged on the same plane is solved, the phenomenon that a plurality of layers of calandria are overlapped is thoroughly solved, the calandria level of, the capital is greatly saved.
The freezing and discharging pipe 44 is fixed on the ice plate fine leveling layer 18 through a pipe seat net rack, as shown in fig. 4, the pipe seat net rack is a grid structure formed by criss-cross arrangement of a transverse pipe seat strip rack 5 and a longitudinal support strip rack 6, the transverse pipe seat strip rack 5 is a strip structure with a rectangular longitudinal section, is arranged along the width direction of the ice rink, is uniformly distributed at intervals along the length direction of the ice rink, and is fixed on the ice plate fine leveling layer 18 through shooting nails; the distance between adjacent horizontal tube socket strip frame 5 is not more than 1m, horizontal tube socket strip frame 5 is the PE material, the top surface level is offered and is used for the card to fix the tube seat of freezing calandria 44, the length direction setting of the horizontal tube socket strip frame 5 of tube seat axis perpendicular to, and set up with freezing calandria 44 one-to-one, the tube seat is the ascending semi-circular channel of opening, it strides to establish on horizontal tube socket strip frame 5 and blocks fixedly in the tube seat to freeze calandria 44, the pipe diameter of channel cooperatees with freezing calandria 44.
As shown in fig. 5, the longitudinal support bar rack 6 includes a support base plate 61, pi-shaped supports 62 arranged side by side on the support base plate 61, and a connecting rod 63 connecting adjacent pi-shaped supports 62, the support base plate 61 is a rectangular low carbon alloy steel strip with a thickness not more than 4mm, the support base plate is horizontally placed on the ice board leveling layer 18, two ends of the support base plate are in contact with the transverse tube seat bar racks 5 on two sides, the pi-shaped supports 62 include vertically arranged n-shaped supports with downward openings, the n-shaped supports are arranged along the length direction of the support base plate 61, two open ends of the n-shaped supports are vertically bent and then horizontally extended outwards to form horizontal ribs, the two horizontal ribs are respectively located on two sides of the n-shaped supports, the horizontal ribs are welded and fixed with the support base plate 61, and the n-shaped supports 62 are formed by; the horizontal full length setting of connecting rod 63, with n line support's top horizontal pole welded fastening, the height ratio of vertical support strip frame 6 horizontal tube socket strip frame 5 of height is 5mm at least, upper reinforcing bar net piece 191 in the ice field bearing layer 19 sets up on vertical support strip frame 6, vertical support strip frame 6 has erect upper reinforcing bar net piece 191, avoid upper reinforcing bar net piece 191 and the contact of the row's of freezing pipe 44 of card setting in the tube seat, cause the extrusion damage to coating film layer and the copper pipe of coating film copper pipe, the distance between the adjacent vertical support strip frame 6 is not more than 1 m.
The thickness of the ice layer 20 is 30-50mm, and can be adjusted according to different functions of the ice rink.
The ice layer temperature control system comprises an ice making system, a first temperature sensor arranged in the bottom plate heating layer 12, a second temperature sensor arranged between the ice field bearing layer 19 and the ice layer 20, an infrared temperature sensor arranged above the ice field and a control system, wherein the signal output ends of the first temperature sensor, the second temperature sensor and the infrared temperature sensor are respectively connected with the signal input end of the control system.
As shown in FIG. 6, the ice-making system includes CO2Transcritical direct refrigeration compressor train 71, cooling tower 72 and heat recovery system, CO2The refrigerant outlet of the transcritical direct-cooling compressor unit 71 is connected with the liquid supply main pipe 41 in the refrigeration pipe network, and the return air main pipe 42 in the refrigeration pipe network is connected with CO2CO of transcritical direct refrigeration compressor train 712The return air port is connected with CO2As refrigerant, liquid CO2Is conveyed into a refrigeration pipe network and is uniformly conveyed to all places on the ice surface through a freezing discharge pipe 44, and CO passes through2Evaporation absorbs heat, the temperature above the bearing layer 19 of the ice field is reduced, and ice making is realized.
CO2The transcritical direct-cooling compressor unit 71 adopts water cooling for cooling, and recovers the heat generated by the unit during operation through a heat recovery system, wherein the heat recovery system comprises a high-temperature heat recoverer 73, a medium-temperature heat recoverer 74 and a low-temperature heat recoverer 75, and CO2The transcritical direct-cooling compressor unit 71 is respectively connected with a high-temperature heat recoverer 73, a medium-temperature heat recoverer 74 and a low-temperature heat recoverer 75 through pipelines to recover CO2The heat released by compression in the unit is sent to a heat recovery system for recycling, the heat recovered by the high-temperature heat recoverer 73 can be used for a rotary wheel dehumidification air conditioning unit, an anti-condensation air conditioning unit and ice pouring, the heat recovered by the medium-temperature heat recoverer 74 can be used for water supply preheating of a water pump room, and the heat recovered by the low-temperature heat recoverer 75 is used for ice melting in an ice melting pool and in the bottom plate heating layer 12 through the water collecting and distributing device 126 and is used for preventing frost heaving of the bottom plate.
CO2A cooling water outlet of the transcritical direct-cooling compressor unit 71 is connected with a liquid inlet of the cooling tower 72 through a cooling pipeline 81, and a liquid outlet of the cooling tower 72 is connected with CO through a water return pipeline 822The cooling water inlet of the transcritical direct-cooling compressor unit 71 is communicated, the cooling water circulating pump 83 and the filter 91 are sequentially connected in series on the water return pipeline 82, the filter 91 is an internal brush type automatic pollution discharge filter, and CO is discharged2The transcritical direct-cooling compressor unit 71 adopts a water-cooling mode, wherein cooling water in the condenser exchanges heat in the cooling tower 72 to ensure that the cooling water is cooled circularly, the cooled cooling water is pumped out by the cooling water circulating pump 83 and is subjected to impurity removal by the filter 91, and then the cooled cooling water is cooledThen returns to CO2In the transcritical direct-cooling compressor unit 71, the refrigerant in the unit is circulated to exchange heat with the refrigerant in the unit to carry out heat treatment on the refrigerant CO2And (5) cooling.
The water replenishing port of the cooling tower 72 is connected to the softened water tank 92 through the water replenishing pipe 84, and the softened tap water is stored in the softened water tank 92 to replenish the cooling tower 72.
The control system consists of three layers of control, and the control system of each refrigerating device is basically controlled in three layers; the central control system PLC is a control core of the refrigerating system and is a secondary control; the SCADA is a primary control, and the main function is data acquisition and monitoring; the central control system PLC is used for realizing the control operation of all refrigerating equipment on site and the transmission of signal data, and the functions of flow chart display, control, operation, alarm recording and the like are completed by programming software; the system controls the temperature sensors, and signals acquired by all the temperature sensors are fed back to the control system.
The second temperature sensors are arranged between the ice field bearing layer 19 and the ice layer 20 and are evenly distributed in a matrix shape in the ice field range, the signal output ends of the second temperature sensors are electrically connected with the signal input end of the control system, the temperature below the ice layer 20 is transmitted to the control system in real time, and the start and stop of the compressor unit can be controlled according to the weighted average value of the second temperature sensors.
CO when the ice bottom temperature reaches the upper limit of the set value2The transcritical direct-cooling compressor set 71 is started, the ice surface temperature begins to drop after the carbon dioxide pump is started, and CO is generated when the ice bottom temperature reaches the lower limit of a set value2The transcritical direct cooling compressor set 71 stops or reduces the energy level operation, thereby achieving temperature control of the ice surface.
The infrared temperature sensor is arranged at the top of a building above an ice rink and fixed on a structural steel beam at the top of the building through a connecting piece, a signal output end of the infrared temperature sensor is electrically connected with a signal input end of the control system, the collected temperature of the upper surface of the ice surface can be transmitted to the control system in real time, and CO is controlled according to the temperature of the upper surface of the ice surface2Loading and unloading of the transcritical direct refrigeration compressor train 71 to control CO2The start and stop or energy level reduction of the transcritical direct-cooling compressor unit 71 can predict the change of the ice field temperature field in advance, feed back the change to the control system in time and control the compressor unit to react earlier. The head of the infrared temperature sensor must be perpendicular to the ice surface, and is fixed directly downward above the ice surface using a provided footing mounting bracket, at least 3m away from the enclosure, and at least 3.5m away from the lamps, heaters, vents and other heat sources.
The number of the first temperature sensors is not less than four, the first temperature sensors are uniformly distributed at intervals in the ice field range, the signal output ends of the first temperature sensors are electrically connected with the signal input end of a control system, the signal output end of the control system is electrically connected with the signal input end of a heat circulating pump 125, the first temperature sensors transmit the temperature above the basic pressure bearing layer 11 to the control system in real time, and after the basic pressure bearing layer 11 reaches the risk temperature of 3 ℃, the heat circulating pump 125 is turned on or off through the control system to ensure that the temperature of the basic pressure bearing layer 11 is not lower than 3 ℃ and prevent the bottom plate below from dewing; the outside cover of first temperature sensor is equipped with stainless steel protective case, can effectively protect the probe of sensor.
The utility model relates to a construction method of indoor ice rink of large-scale artifical, including following step:
step one, cleaning and leveling the surface of the base pressure bearing layer 11, ensuring that the flatness is within +/-10 mm, and avoiding the phenomena of burrs, peeling, bulges, exposed ribs and the like.
Step two, constructing a bottom plate heating layer 12:
the construction is specifically carried out according to the following steps:
2.1, paving a water supply main pipe 121 and a water return main pipe 122 in the main pipe ditch 2, communicating the water supply main pipe and the water return main pipe with a water collecting and distributing device 126, and cleaning dirt in the pipes after the installation is finished;
2.2, laying a heating coil 123, connecting the heating coil 123 with the water supply main pipe 121 and the water return main pipe 122, and carrying out hot melting welding on the heating coil 123, the water supply main pipe 121 and the water return main pipe 122;
2.3, arranging a first temperature sensor in the ice rink range and connecting the first temperature sensor with the ice rink range;
2.4, carrying out pressure test on the heating system pipeline;
the specific pressure test method comprises the following steps: testing pressure by using a pressure gauge with the measuring range of 0-1.0 MPa, wherein the pressure testing pressure is 1.5 times of the working pressure and not less than 0.6MPa, and the pressure drop is not more than 0.05MPa after the pressure is stabilized for 1 hour under the testing pressure; reducing the pressure of the system to 1.15 times of the working pressure, stabilizing the pressure for 2 hours, wherein the pressure drop is not more than 0.03 MPa, and the pipelines and the joints of the system are not leaked and qualified;
2.5, after the pressure test is qualified, reducing the pressure in the pipe to the working pressure, and constructing the backfill layer 124 under the pressure maintaining state of the pipeline;
the heating pipeline is protected by adopting medium and coarse sand backfilling, the heating pipeline is avoided as much as possible in the sand layer tamping process, the tamping degree is controlled, and the main pipe ditch 2 is backfilled to lay a foundation for the construction of the heat insulation layer 14, namely tamping and leveling.
Step three, constructing a steam barrier layer 13: the adjacent PE films are overlapped and bonded and fixed, so that the overlapped part is ensured to be tight and airtight.
Step four, constructing an insulating layer 14: and (3) laying extruded sheets in sequence from bottom to top, wherein the extruded sheets of each layer are arranged in a staggered joint mode, and the extruded sheets of adjacent layers are arranged in a pressed joint mode.
Step five, constructing the isolation layer 15: the adjacent PE films are overlapped and bonded and fixed,
step six, constructing a waterproof layer 16:
the construction is specifically carried out according to the following steps:
6.1, laying a first protective layer 31: c25 fine stone concrete mortar is paved and maintained to standard strength;
6.2, flattening and cleaning the surface of the first protective layer 31 to ensure that the surface of the base layer has no defects of protruding sharp corners, pits, peeling and sanding, cracks larger than 0.5mm and the like; the surface is required to be smooth, firm, clean, free of open water and free of leakage;
6.3, coating cold primer oil on the surface of the first protection layer 31 so that the first protection layer 31 can be better combined with the waterproof layer 16, and drying for more than 8 hours to perform subsequent construction operation so as to avoid fire;
6.4, adopting hot melting construction, heating the waterproof layer 16 coiled material by using a gasoline blowtorch or a gas welding gun, uniformly heating, wherein the blowtorch is about 0.5m away from the coiled material, and slowly rolling and paving after the surface of the coiled material is melted; sealing the joint edge with iron trowel or other tool before cooling the asphalt felt, and sealing with blowtorch;
6.5, after the waterproof layer 16 is paved and adhered, and is completely dried and solidified after 48 hours generally, carrying out a water closing test;
6.6, after the acceptance is passed, laying the second protective layer 32 on the surface of the waterproof layer 16, finishing laying by using C25 fine stone concrete mortar, and curing to the standard strength to finish the construction of the waterproof layer 16.
Step seven, constructing a sliding layer 17: three layers of HDPE films are laid in sequence from bottom to top, and lubricating oil is coated between adjacent HDPE films.
Step eight, construction of an ice plate leveling layer 18: arranging a bidirectional steel bar mesh, pouring F150C 35 anti-freezing concrete, and curing to standard strength;
the length of the bottom longitudinal reinforcing steel bar in the bidirectional reinforcing steel bar mesh sheet is not shorter than 6m, the minimum lap length is 300mm, and the bidirectional reinforcing steel bar mesh is bound, constructed and bound point by point, so that the jump buckle is avoided.
Ninth, construction of the bearing layer 19 of the ice rink:
the construction method specifically comprises the following steps:
9.1, arranging a refrigeration main pipe in a same-way mode, namely a liquid supply main pipe 41, an air return main pipe 42 and a balance pipe 43, wherein the main pipes are connected in a gas welding mode, so that the structure is firm and firm, and the requirement on the site construction environment is lower;
9.2, paying off and positioning, determining the setting position of the pipe seat net rack, and installing the pipe seat net rack; the pipe seat net rack is fixed on the ice board fine leveling layer 18;
9.3, laying the freezing discharge pipes 44, and connecting the adjacent freezing discharge pipes 44 by adopting U-shaped pipe gas welding to avoid natural bending of the freezing discharge pipes 44 and fix the freezing discharge pipes 44 on the pipe seat net rack;
9.4, checking and accepting after the pipeline installation of the refrigeration pipe network is finished, and filling nitrogen into the freezing exhaust pipe 44 for pressure maintaining;
9.5, arranging an upper layer of steel mesh sheet 191 under the pressure maintaining state of the frozen pipe bank 44, pouring F200C 35 anti-freezing concrete, and maintaining to a standard strength;
the concrete is poured and distributed by adopting a method of pushing from one side to the other side, covering layer by layer, sequentially pushing and jacking at one time. In order to dissipate hydration heat of concrete as soon as possible, layered pouring is carried out in the pouring process, covering is carried out layer by layer, sequential pushing is carried out, and continuous pouring is finished.
Step ten, setting an ice layer temperature control system and constructing other electrical systems: and finishing the setting and connection of the ice layer temperature control system and the construction of other matched electrical systems.
The utility model discloses ice sheet temperature control system's temperature regulation and control method specifically includes several following aspects:
A. control of the soleplate heating layer 12: the first temperature sensor transmits the temperature above the basic pressure bearing layer 11 to the control system in real time, and after the basic pressure bearing layer 11 reaches the risk temperature of 3 ℃, the control system starts the heat circulating pump 125 to ensure that the temperature of the basic pressure bearing layer 11 is not lower than 3 ℃;
B. regulation and control of the ice making system: the method specifically comprises the following steps:
b-1, with CO2As refrigerant, by CO2Transcritical direct refrigeration compressor train 71 transfers liquid CO2Is conveyed into a refrigeration pipe network and is uniformly conveyed to all places on the ice surface through a freezing discharge pipe 44, and CO passes through2Evaporation and heat absorption are carried out, the temperature above the bearing layer 19 of the ice field is reduced, and ice making is realized;
b-2, liquid CO after heat exchange2Heat absorption and evaporation, returning CO through the return air main 422In the transcritical direct-cooling compressor unit 71, the temperature is reduced and liquefied through a condenser in the unit, and the liquefied gas returns to a refrigeration pipe network for circulating temperature reduction so as to maintain the ice surface temperature;
B-3、CO2the transcritical direct-cooling compressor unit 71 recovers and utilizes the heat generated by the unit when the unit works through a heat recovery system, the heat recovered by the high-temperature heat recoverer 73 can be used for a rotary wheel dehumidification air-conditioning unit, an anti-dewing air-conditioning unit and ice pouring, the heat recovered by the medium-temperature heat recoverer 74 can be used for supplying water for preheating a water pump room, and the heat recovered by the low-temperature heat recoverer 75,the water is used for melting ice in an ice melting pool and in a bottom plate heating layer 12 through a water dividing and collecting device 126, and is used for preventing the bottom plate from frost heaving;
B-4、CO2cooling water and CO of transcritical direct refrigeration compressor train 712Steam heat exchange to cool CO2The cooling water with increased temperature is cooled by the cooling tower 72, and the cooled cooling water is filtered by the filter 91 and then returns to the CO2A transcritical direct cooling compressor unit 71 circulating refrigerant CO2Cooling;
C. the second temperature sensors transmit the temperature below the ice layer 20 to the control system in real time, and the CO can be controlled according to the weighted average value of each second temperature sensor2Starting and stopping the transcritical direct-cooling compressor unit 71;
CO when the ice bottom temperature reaches the upper limit of the set value2The transcritical direct-cooling compressor set 71 is started, the ice surface temperature begins to drop after the carbon dioxide pump is started, and CO is generated when the ice bottom temperature reaches the lower limit of a set value2The transcritical direct cooling compressor set 71 stops or reduces the energy level operation, thereby achieving temperature control of the ice surface.
D. The infrared temperature sensor transmits the collected temperature of the upper surface of the ice surface to the control system in real time, and CO is controlled according to the temperature of the upper surface of the ice surface2Loading and unloading of the transcritical direct refrigeration compressor train 71 to control CO2The start and stop or energy level reduction of the transcritical direct-cooling compressor unit 71 can predict the change of the ice field temperature field in advance, feed back the change to the control system in time and control the compressor unit to react earlier.
The above-mentioned embodiments are only for describing the preferred embodiments of the present invention, and are not intended to limit the scope of the present invention, and various modifications and improvements made by those skilled in the art without departing from the design spirit of the present invention should fall into the protection scope defined by the claims of the present invention.
Claims (9)
1. A large artificial indoor ice rink comprises a field foundation structure and an ice layer temperature control system; the method is characterized in that: the ground foundation structure comprises a foundation bearing layer (11), a bottom plate heating layer (12), a steam barrier layer (13), a heat preservation layer (14), an isolation layer (15), a waterproof layer (16), a sliding layer (17), an ice plate fine leveling layer (18), an ice field bearing layer (19) and an ice layer (20) from bottom to top; the bottom plate heating layer (12) comprises a water supply main pipe (121), a water return main pipe (122), a heating coil pipe (123) and a backfill layer (124) covering the pipeline, the water supply main pipe (121) and the water return main pipe (122) are arranged in parallel in a main pipe ditch (2) formed in the upper surface of the basic pressure bearing layer (11), and the heating coil pipe (123) is uniformly distributed and coiled on the upper surface of the basic pressure bearing layer (11) and is communicated with the water supply main pipe (121) and the water return main pipe (122); the sliding layer (17) comprises three layers of HDPE films which are overlapped up and down; the ice plate fine leveling layer (18) and the ice field bearing layer (19) are both of reinforced concrete structures, and a refrigeration pipe network and an upper layer of reinforced mesh (191) are arranged in the ice field bearing layer (19) from bottom to top;
the ice layer temperature control system comprises an ice making system connected with a refrigeration pipe network, a first temperature sensor arranged in the bottom plate heating layer (12), a second temperature sensor arranged between the ice field bearing layer (19) and the ice layer (20), an infrared temperature sensor arranged above the ice field and a control system.
2. A large artificial indoor ice rink according to claim 1, characterized in that: the main pipe ditch (2) is positioned on one side of an ice rink, a water inlet of the heating coil (123) is communicated with a water supply main pipe (121), a water outlet of the heating coil is communicated with a water return main pipe (122), a water inlet of the water supply main pipe (121) is communicated with a water collecting and distributing device (126) through a heat circulating pump (125), a water outlet of the water return main pipe (122) is communicated with the water collecting and distributing device (126), and a signal input end of the heat circulating pump (125) is electrically connected with a signal output end of a control system.
3. A large artificial indoor ice rink according to claim 1, characterized in that: the steam barrier layer (13) is a PE film, and adjacent PE films are in lap joint and are bonded and fixed; the heat-insulating layer (14) is a double-layer extruded sheet which is overlapped up and down, the extruded sheet of each layer is arranged at staggered joints, the extruded sheet of the adjacent layer is arranged at pressed joints, and the thickness of the heat-insulating layer (14) is not less than 100 mm.
4. A large artificial indoor ice rink according to claim 1, characterized in that: waterproof layer (16) are the SBS modified asphalt waterproofing membrane that thickness is not less than 4mm, and the overlap joint is fixed between the adjacent waterproofing membrane, is provided with first protective layer (31) between waterproof layer (16) and isolation layer (15), and first protective layer (31) are the mortar layer that thickness is not less than 50 mm.
5. A large artificial indoor ice rink according to claim 1, characterized in that: lubricating oil is coated between adjacent HDPE films in the sliding layer (17), a second protective layer (32) is arranged between the sliding layer (17) and the waterproof layer (16), and the second protective layer (32) is a mortar layer with the thickness not less than 50 mm.
6. A large artificial indoor ice rink according to claim 1, characterized in that: the refrigeration pipe network is responsible for (41), return air main (42), balance pipe (43) and freezes calandria (44) including supplying liquid, freezes calandria (44) both ends and is responsible for (41) and balance pipe (43) with the liquid supply respectively and be connected, and balance pipe (43) and return air main (42) intercommunication set up, and the distance between adjacent freezing calandria (44) is not more than 100mm, freezes calandria (44) and passes through the tube socket rack and fix on the smart flat bed of ice plate (18).
7. A large artificial indoor ice rink according to claim 1, characterized in that: the first temperature sensor and the second temperature sensor are uniformly distributed in the range of the ice field respectively, the infrared temperature sensor is arranged at the top of a building above the ice field, the head of the infrared temperature sensor is perpendicular to the ice surface, the signal output ends of the first temperature sensor, the second temperature sensor and the infrared temperature sensor are electrically connected with the signal input end of the control system respectively, and the signal output end of the control system is electrically connected with the ice making system.
8. A large artificial indoor ice rink according to claim 6, characterized in that: the tube seat net rack is of a grid structure formed by criss-cross arrangement of a transverse tube seat strip rack (5) and a longitudinal support strip rack (6) and is arranged on the ice board fine leveling layer (18), a tube slot for clamping and fixing the frozen discharge tube (44) is horizontally formed in the top surface of the transverse tube seat strip rack (5), and the axis of the tube slot is perpendicular to the length direction of the transverse tube seat strip rack (5) and is arranged in one-to-one correspondence with the frozen discharge tube (44); the height of the longitudinal support bar rack (6) is higher than that of the transverse pipe seat bar rack (5), and the upper layer of steel mesh (191) is arranged above the longitudinal support bar rack (6).
9. A large artificial indoor ice rink according to claim 1, characterized in that: the ice making system is transcritical CO2An ice making system.
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| CN201922460406.9U CN211571260U (en) | 2019-12-31 | 2019-12-31 | Large artificial indoor ice rink |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110904782A (en) * | 2019-12-31 | 2020-03-24 | 中建二局第三建筑工程有限公司 | Large artificial indoor ice rink and construction method thereof |
| CN112962913A (en) * | 2021-02-02 | 2021-06-15 | 中国建筑第八工程局有限公司 | Pipe ditch structure of ice rink |
| CN113789818A (en) * | 2021-11-17 | 2021-12-14 | 中国飞机强度研究所 | Special frost-proof device that melts of aircraft design |
| CN115404740A (en) * | 2022-09-30 | 2022-11-29 | 中国建筑一局(集团)有限公司 | Underground ice rink multipurpose structural layer and construction method thereof |
-
2019
- 2019-12-31 CN CN201922460406.9U patent/CN211571260U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110904782A (en) * | 2019-12-31 | 2020-03-24 | 中建二局第三建筑工程有限公司 | Large artificial indoor ice rink and construction method thereof |
| CN112962913A (en) * | 2021-02-02 | 2021-06-15 | 中国建筑第八工程局有限公司 | Pipe ditch structure of ice rink |
| CN113789818A (en) * | 2021-11-17 | 2021-12-14 | 中国飞机强度研究所 | Special frost-proof device that melts of aircraft design |
| CN115404740A (en) * | 2022-09-30 | 2022-11-29 | 中国建筑一局(集团)有限公司 | Underground ice rink multipurpose structural layer and construction method thereof |
| CN115404740B (en) * | 2022-09-30 | 2024-05-07 | 中国建筑一局(集团)有限公司 | Multipurpose structural layer of underground ice rink and construction method thereof |
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