CN103698355A - Integral thaw testing machine - Google Patents
Integral thaw testing machine Download PDFInfo
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- CN103698355A CN103698355A CN201310737984.7A CN201310737984A CN103698355A CN 103698355 A CN103698355 A CN 103698355A CN 201310737984 A CN201310737984 A CN 201310737984A CN 103698355 A CN103698355 A CN 103698355A
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Abstract
The invention discloses an integral thaw testing machine. The integral thaw testing machine comprises a main cabinet, wherein a test piece box, a heating device, a refrigerating device and a water pump are arranged inside the main cabinet; the heating device is arranged beside the test piece box, and is communicated with the interior of the test piece box through a pipeline; grids are arranged inside the test piece box; concrete test piece boxes are arranged inside the grids; a flow guiding pipe whose head and tail are connected into a square is arranged inside the test piece box; the flow guiding pipe is hollow; the section of the flow guiding pipe is square; the outer ring of the flow guiding pipe is fixed on the inner wall of the test piece box; a liquid inlet communicated with the interior of the flow guiding pipe is formed on the outer wall of the flow guiding pipe; the liquid inlet is connected with a third pipeline; a plurality of liquid outlets communicated with the flow guiding pipe are formed on the inner wall of the flow guiding pipe; and the hole diameters of the liquid outlets gradually increase along with the increase of the distances between the liquid outlets and the liquid inlet. The integral thaw testing machine greatly improves the uniformity of the temperature inside the test piece box and thus avoids the temperature differences among a plurality of concrete test pieces, so that test data is more accurate and reliable.
Description
Technical field
The present invention relates to a kind of freezing-thawing test machine, relate in particular to a kind of monoblock type freezing-thawing test machine, belong to and concrete antifreezing performance testing equipment technical field.
Background technology
In order to detect the anti-freezing property of concrete sample, need simulating nature circle variation of ambient temperature, concrete sample is tested, be called freezing-thawing test.In prior art, freezing equipment and thawing equipment separate, temperature-fall period will be placed on concrete sample in household freezer (refrigerant is air), after completing, need manually from household freezer, to take out test specimen, then putting into thawing equipment (aqueous fusion) melts, and then manually take out test specimen, put into household freezer and carry out next circulation, concrete sample is placed in back and forth and freezes, melts equipment, take a lot of work, require great effort, labour intensity is large, and the concrete time in transfer process will with ambient atmosphere environmental exposure, increased test error.
As Chinese invention patent < < monoblock type freezing-thawing test machine > >, application number is 201220736516.9, a kind of monoblock type freezing-thawing test machine is disclosed, this freezing-thawing test machine utilizes refrigerating plant and water pump to filling liquid medium in test specimen case, to concrete sample, carry out freezing, after reaching the temperature needing, refrigerating plant cuts out, utilize heating arrangement and water pump to filling liquid medium in test specimen case, concrete sample is melted, complete a freezing and thawing cycle, repeat above-mentioned steps, enter next freezing and thawing cycle.The automatization level of this freezing-thawing test machine is high, and process of the test does not need manual intervention, and concrete sample, in test specimen case, does not contact with atmospheric environment, and test figure is accurate; Meanwhile, freezing-thawing test owner will comprise main box, and integral design makes mobile convenient in carrying.But in above-mentioned freezing-thawing test machine, liquid medium enters in test specimen case by single inlet, due to stopping of concrete sample, can cause the non-uniform temperature in test specimen case, cause the temperature between a plurality of concrete samples there are differences, thereby increased test error.
Summary of the invention
Technical matters for above-mentioned existence, the object of the invention is: proposed a kind of liquid medium and entered the monoblock type freezing-thawing test machine in test specimen case by mozzle.
Technical solution of the present invention is achieved in that a kind of monoblock type freezing-thawing test machine, comprises main box; In described main box, be provided with test specimen case, heating arrangement, refrigerating plant and water pump; Described heating arrangement arranges test specimen case side, by pipeline, communicates with test specimen case inside; Described refrigerating plant is connected by the first pipeline with water pump; Described heating arrangement is connected by the second pipeline with water pump; Described test specimen case is connected by the 3rd pipeline with refrigerating plant; In described test specimen case, be provided with grid; In described grid, be provided with concrete sample case; In described test specimen case, be also provided with head and the tail and connect into square mozzle; Described mozzle hollow; The cross section of described mozzle is square; The outer shroud of described mozzle is fixed on the inwall of test specimen case; On the outer wall of described mozzle, have the inlet communicating with mozzle inside; Described inlet and the 3rd pipeline join; On the inwall of described mozzle, have a plurality of liquid outlets that communicate with mozzle; The aperture of described liquid outlet increases successively from the direction close to away from inlet.
Preferably, the quantity of described liquid outlet is identical with the quantity of grid grizzly bar; The center line of the center line of described liquid outlet and grid grizzly bar is positioned at same perpendicular.
Preferably, described main box side is provided with switch board; Described switch board is connected with heating arrangement, refrigerating plant and water pump, for controlling heating arrangement, refrigerating plant and water pump start and stop.
Preferably, described refrigerating plant comprises compressor reducer, condenser and heat interchanger; Described water pump is connected with heat interchanger by the first pipeline; Described test specimen case is connected with heat interchanger by the 3rd pipeline.
Preferably, in the perisporium of described test specimen case, be provided with heat-insulation layer.
Preferably, in described heat-insulation layer, be filled with foamed cotton.
Due to the utilization of technique scheme, the present invention compared with prior art has following advantages:
Monoblock type freezing-thawing test machine of the present invention, liquid medium enters in test specimen case by mozzle, because the liquid outlet of mozzle is provided with a plurality of, the aperture of liquid outlet increases successively from the direction close to away from inlet, can greatly improve the homogeneity of test specimen the temperature inside the box, thereby avoided the temperature between a plurality of concrete samples there are differences, made test figure more precisely, reliably.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, technical solution of the present invention is described further:
Accompanying drawing 1 is the structural representation of monoblock type freezing-thawing test machine of the present invention;
Accompanying drawing 2 is the use status architecture schematic diagram of monoblock type freezing-thawing test machine of the present invention;
Accompanying drawing 3 is the structural representation of the mozzle of monoblock type freezing-thawing test machine of the present invention;
Wherein: 1, main box; 2, test specimen case; 3, heating arrangement; 4, water pump; 5, the first pipeline; 6, the second pipeline; 7, the 3rd pipeline; 8, grid; 9, mozzle; 10, inlet; 11, liquid outlet; 12, switch board; 13, compressor reducer; 14, condenser; 15, heat interchanger; 16, heat-insulation layer; 17, concrete sample case.
Embodiment
Below in conjunction with accompanying drawing, the present invention is described.
Of the present invention a kind of monoblock type freezing-thawing test machine as shown in accompanying drawing 1,3, comprises main box 1; In described main box 1, be provided with test specimen case 2, heating arrangement 3, refrigerating plant and water pump 4; Described heating arrangement 3 arranges test specimen case 2 sides, by pipeline, communicates with test specimen case 2 inside; Described refrigerating plant is connected by the first pipeline 5 with water pump 4; Described heating arrangement 3 is connected by the second pipeline 6 with water pump 4; Described test specimen case 2 is connected by the 3rd pipeline 7 with refrigerating plant; In described test specimen case 2, be provided with grid 8; In described grid 8, be provided with concrete sample case 17; In described test specimen case 2, be also provided with head and the tail and connect into square mozzle 9; Described mozzle 9 hollows; The cross section of described mozzle 9 is square; The outer shroud of described mozzle 9 is fixed on the inwall of test specimen case 2; On the outer wall of described mozzle 9, have the inlet 10 communicating with mozzle 9 inside; Described inlet 10 and the 3rd pipeline 7 join; On the inwall of described mozzle 9, have a plurality of liquid outlets 11 that communicate with mozzle 9; The aperture of described liquid outlet 11 increases successively from the direction close to away from inlet 10; Described main box 1 side is provided with switch board 12; Described switch board 12 is connected with heating arrangement 3, refrigerating plant and water pump 4, for controlling heating arrangement 3, refrigerating plant and water pump 4 start and stop; Described refrigerating plant comprises compressor reducer 13, condenser 14 and heat interchanger 15; Described water pump 4 is connected with heat interchanger 15 by the first pipeline 5; Described test specimen case 2 is connected with heat interchanger 15 by the 3rd pipeline 7; In the perisporium of described test specimen case 2, be provided with heat-insulation layer 16; In described heat-insulation layer 16, be filled with foamed cotton.
Monoblock type freezing-thawing test machine of the present invention as shown in Figure 2, liquid medium is from the 3rd pipeline 7, through mozzle 9, flow in test specimen casees 2, after flow through successively heating arrangement 3, water pump 4 and refrigerating plant, again through mozzle 9, flow in test specimen case 2, form liquid medium flow circuit.During use, concrete sample is placed in concrete sample case 17, first by switch board 12, opens refrigerating plant, to concrete sample, carry out freezing, after reaching the temperature needing, by switch board 12, close refrigerating plant, open heating arrangement 3, concrete sample is melted, complete a freezing and thawing cycle, repeat above-mentioned steps, enter next freezing and thawing cycle.
Monoblock type freezing-thawing test machine of the present invention, liquid medium enters in test specimen case by mozzle, because the liquid outlet of mozzle is provided with a plurality of, the aperture of liquid outlet increases successively from the direction close to away from inlet, can greatly improve the homogeneity of test specimen the temperature inside the box, thereby avoided the temperature between a plurality of concrete samples there are differences, made test figure more precisely, reliably.
In order better to reach above-mentioned effect, the quantity of institute's liquid outlet is identical with the quantity of grid grizzly bar; The center line of the center line of described liquid outlet and grid grizzly bar is positioned at same perpendicular.
Above-mentioned monoblock type freezing-thawing test machine, automatization level is high, and process of the test does not need manual intervention, and concrete sample, in test specimen case, does not contact with atmospheric environment, and test figure is accurate; Meanwhile, monoblock type freezing-thawing test owner will comprise main box, and integral design makes mobile convenient in carrying.
Above-described embodiment is only explanation technical conceive of the present invention and feature; its object is to allow person skilled in the art can understand content of the present invention and be implemented; can not limit the scope of the invention with this; all equivalences that Spirit Essence is done according to the present invention change or modify, and all should be encompassed in protection scope of the present invention.
Claims (6)
1. a monoblock type freezing-thawing test machine, is characterized in that: comprise main box; In described main box, be provided with test specimen case, heating arrangement, refrigerating plant and water pump; Described heating arrangement arranges test specimen case side, by pipeline, communicates with test specimen case inside; Described refrigerating plant is connected by the first pipeline with water pump; Described heating arrangement is connected by the second pipeline with water pump; Described test specimen case is connected by the 3rd pipeline with refrigerating plant; In described test specimen case, be provided with grid; In described grid, be provided with concrete sample case; In described test specimen case, be also provided with head and the tail and connect into square mozzle; Described mozzle hollow; The cross section of described mozzle is square; The outer shroud of described mozzle is fixed on the inwall of test specimen case; On the outer wall of described mozzle, have the inlet communicating with mozzle inside; Described inlet and the 3rd pipeline join; On the inwall of described mozzle, have a plurality of liquid outlets that communicate with mozzle; The aperture of described liquid outlet increases successively from the direction close to away from inlet.
2. monoblock type freezing-thawing test machine according to claim 1, is characterized in that: the quantity of described liquid outlet is identical with the quantity of grid grizzly bar; The center line of the center line of described liquid outlet and grid grizzly bar is positioned at same perpendicular.
3. monoblock type freezing-thawing test machine according to claim 1 and 2, is characterized in that: described main box side is provided with switch board; Described switch board is connected with heating arrangement, refrigerating plant and water pump, for controlling heating arrangement, refrigerating plant and water pump start and stop.
4. monoblock type freezing-thawing test machine according to claim 3, is characterized in that: described refrigerating plant comprises compressor reducer, condenser and heat interchanger; Described water pump is connected with heat interchanger by the first pipeline; Described test specimen case is connected with heat interchanger by the 3rd pipeline.
5. according to the monoblock type freezing-thawing test machine one of claim 1~4 Suo Shu, it is characterized in that: in the perisporium of described test specimen case, be provided with heat-insulation layer.
6. monoblock type freezing-thawing test machine according to claim 5, is characterized in that: in described heat-insulation layer, be filled with foamed cotton.
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Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN104089971A (en) * | 2014-07-22 | 2014-10-08 | 常熟市环境试验设备有限公司 | Device for testing freezing and thawing properties of concrete hollow blocks |
CN104458793A (en) * | 2014-12-19 | 2015-03-25 | 苏州市东华试验仪器有限公司 | Micro cooling capacity exchange type fast freezing-thawing testing machine |
CN104458791A (en) * | 2014-12-19 | 2015-03-25 | 苏州市东华试验仪器有限公司 | Rapid freeze-thawing testing machine with good heat radiation effect |
CN109444037A (en) * | 2019-01-09 | 2019-03-08 | 中铁检验认证中心 | Concrete fast freeze-thaw and detection integration test machine |
CN110044421A (en) * | 2019-05-09 | 2019-07-23 | 兰州理工大学 | Inside concrete temperature and humidity dynamic freezing-thawing test device and its test method |
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Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN104089971A (en) * | 2014-07-22 | 2014-10-08 | 常熟市环境试验设备有限公司 | Device for testing freezing and thawing properties of concrete hollow blocks |
CN104458793A (en) * | 2014-12-19 | 2015-03-25 | 苏州市东华试验仪器有限公司 | Micro cooling capacity exchange type fast freezing-thawing testing machine |
CN104458791A (en) * | 2014-12-19 | 2015-03-25 | 苏州市东华试验仪器有限公司 | Rapid freeze-thawing testing machine with good heat radiation effect |
CN109444037A (en) * | 2019-01-09 | 2019-03-08 | 中铁检验认证中心 | Concrete fast freeze-thaw and detection integration test machine |
CN109444037B (en) * | 2019-01-09 | 2024-03-22 | 中铁检验认证中心 | Concrete quick freezing thawing and detecting integrated testing machine |
CN110044421A (en) * | 2019-05-09 | 2019-07-23 | 兰州理工大学 | Inside concrete temperature and humidity dynamic freezing-thawing test device and its test method |
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