CN204479396U - A kind of constant temperature and controllable temperature formula test unit being applicable to saliferous clay test specimen - Google Patents
A kind of constant temperature and controllable temperature formula test unit being applicable to saliferous clay test specimen Download PDFInfo
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- CN204479396U CN204479396U CN201520030865.2U CN201520030865U CN204479396U CN 204479396 U CN204479396 U CN 204479396U CN 201520030865 U CN201520030865 U CN 201520030865U CN 204479396 U CN204479396 U CN 204479396U
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Abstract
The utility model belongs to civil engineering plant field, relates to a kind of constant temperature and the controllable temperature formula test unit that are applicable to saliferous clay test specimen.Primarily of temperature pass sense system system ﹑ fall temperature control system ﹑ add thermal control system ﹑ solid continue electric device ﹑ temperature controller and chamber intelligent control system composition.Constant temperature and controllable temperature formula test unit are mainly divided into specimen test district and workspace, and specimen test district mainly provides required test temperature environment for test specimen, and workspace is mainly places relevant instrument and equipment, and specimen test district becomes three parts by baffle for separating.This device can permanent low temperature exactly under simulating natural environment or the engineering characteristics parameters of freeze-thaw cycles to saliferous clay accurately detect, and has larger practical significance.
Description
Technical field
The utility model belongs to civil engineering plant field, relates to a kind of constant temperature and the controllable temperature formula test unit that are applicable to construction material, particularly relates to a kind of being applicable to and provides the test unit of steady temperature for studying test specimen needed for saliferous clay engineering characteristic.
Background technology
Saliferous clay is widely distributed in the Northwest, and because its distinctive physical environment makes it be in Frozen-thawed cycled or be in low temperature environment for a long time, special environment has larger impact to Mechanical Properties of Materials.Common indoor material Experimental Study On Mechanical Properties mainly carries out in normal temperature, and because saliferous clay has stronger susceptibility to temperature, the mechanics parameter recorded has comparatively big error.Therefore, the low stationary temperature exactly under simulating natural environment or the engineering characteristics parameters of freeze-thaw cycles to saliferous clay accurately detect, and have larger practical significance.
Disclose according to domestic and foreign literature: the 1. refined duckweed of Chinese Academy of Sciences cold area arid region environment and Engineering research institute Shen Ying ﹑ Liu Ji people Zhao ﹑ etc., application number is the patent of invention of " constant-temperature temperature-control test box " of 2011110055580.0, provide a kind of constant-temperature temperature-control test box of frozen soil sample, mainly for a large amount of frozen soil experiment samples provides stationary temperature environment.2. Anhui University of Science and Technology Wang Ren and ﹑ woods refined ﹑ Li Dong is big etc., application number is the utility model patent of " cryogenic box of Artificial Frozen Soil mechanical property test " of 201120082379.7, be to provide a kind of a kind of low-temperature test chamber be applicable under complex geological condition in the especially lower situation of temperature, Ju such as has a mono-﹑ Fang of Jie structure Jian just An Zhuan ﹑ Huan Bao ﹑ is easy to control at the advantage; 3. the Zhang Bingji ﹑ of China Architecture Northeast Design & Research Institute Co., Ltd. once celebrated brightness, application number is the patent of invention of " a kind of foundation pit frozen soil test chamber " of 201310438902.9, provide a kind of adaptability widely, the frozen soil wall experimental facilities of different directions stress can be measured, the advantage of this device is the stress-strain relation can testing frozen soil layer under not synthermal ﹑ damp condition, can measure the stress-strain relation of different directions.
Comprehensive analysis is both at home and abroad about the test unit situation of speciality geotechnique journey parameter measurement, the constant temperature tested about natural salt dirting soil mechanics parameter and controllable temperature formula device still institute are rare, for measuring the engineering characteristics parameters of saliferous clay more exactly, so development one can provide constant low temperature necessary with the test unit that can realize the temperature control of Frozen-thawed cycled formula.
Summary of the invention
Engineering characteristic due to saliferous clay tests the mechanics parameter and temperature close relation that record, the object of the present invention is to provide a kind of constant temperature and the controllable temperature formula test unit that are applicable to saliferous clay test specimen, the saliferous clay test specimen for saline soil area provides the temperature environment of constant low temperature or Frozen-thawed cycled formula.
The object of the invention is to be achieved through the following technical solutions.
Be applicable to saliferous clay engineering characteristic test constant temperature and a controllable temperature formula test unit, primarily of temperature pass sense system system ﹑ fall temperature control system ﹑ add thermal control system ﹑ solid continue electric device ﹑ temperature controller and chamber intelligent control system composition.
Described constant temperature and controllable temperature formula test unit are mainly divided into specimen test district and workspace, specimen test district is mainly for test specimen provides required test temperature environment, workspace is mainly places relevant instrument and equipment, and specimen test district becomes three parts by baffle for separating.
The connected mode of described workspace relevant device is: temperature sensor is connected with specimen test district and communicates, opposite side is connected with temperature controller, cooling control system is connected with test site respectively by two bar pipeline with heating control system, article one, pipeline is used for heating or the temperature after reducing to pass in test site, another pipeline is for drawing the gas of inside, test site, temperature variation in accelerated test district, makes inside, test site reach preset temperature fast.
Described cooling control system and heating control system are connected a solid-state relay respectively, and then solid-state relay is connected with temperature controller, and temperature controller is finally connected to chamber intelligent control system.When temperature is lower than the temperature set, by temperature sensor, signal is imported into temperature controller, temperature controller starts the solid-state relay of heating control system by analyzing, and connection is led to heating control system and carried out work, improves the temperature of inside, test site; When temperature reaches default temperature, by temperature sensor, signal is imported into temperature controller, carry out analyzing rear closedown solid-state relay and stop heating.With should the temperature of temperature higher than setting time, by temperature sensor, signal is imported into temperature controller, temperature controller starts the solid-state relay of cooling control system by analyzing, and connects logical cooling control system and carries out work, reduce the temperature of inside, test site; When temperature is reduced to default temperature, by temperature sensor, signal is imported into temperature controller, carry out analyzing rear closedown solid-state relay and stop cooling.
Described chamber intelligent control system is totally divided into constant low temperature and Frozen-thawed cycled two gears, when being set as constant low temperature, can relevant regulating switch outside clearance device, and setting constant low temperature value; When being set to Frozen-thawed cycled, by the related switch setting low temperature limit value outside device and high temperature limit value, and the relevant Frozen-thawed cycled cycle.All switches and display are all arranged on the right side of test unit, specifically see accompanying drawing.
Constant temperature machine controllable temperature formula test unit is made by stainless steel material, at the disposed inboard layer of polyethylene warming plate of test site, reduces the loss of energy.
Apparatus of the present invention have following excellent results:
(1) selectable constant temperature and Frozen-thawed cycled temperature control system more than intelligent temperature control is had, according to the experimental enviroment needing selection different of test;
(2), after under the experimental enviroment selecting constant temperature, can need to select to select in the scope between 30 DEG C ~-30 DEG C according to test, enough can keep the stable of box house flat-temperature zone temperature;
(3) after selection freezing and thawing test environment, the upper lower limit value of test temperature can be set as required, and the time continued after reaching limit value temperature, set the time in a cycle and the periodicity of Frozen-thawed cycled;
(4) this device has low-energy-consumption, and than traditional cryogenic system device economize energy about 60%, efficiency improves more than 3 times.
Accompanying drawing explanation
Fig. 1 is constant temperature and controllable temperature formula test unit connection diagram.
Fig. 2 is constant temperature and controllable temperature formula test unit cut-open view.
Fig. 3 is constant temperature and controllable temperature formula test unit circuit connection diagram.
Wherein: 1. constant temperature and controllable temperature formula test unit, 2. be incubated transparency glass plate, 3. constant temperature system display, 4. thermostat temperature numerical value by-pass cock, 5. circulation system low temperature display device, 6. circulation system lower temperature scale by-pass cock, 7. circulation system high temperature display, 8. circulation system high temperature scale by-pass cock, 9. power switch, 10. test site subregion dividing plate, 11. temperature-sensing systems, 12. cooling control systems, 13. heating control systems, 14. solid-state relays, 15. temperature controllers, 16. chamber intelligent control systems, 17. freezing and thawing test number of times by-pass cock and displays.
Embodiment
Below in conjunction with accompanying drawing, the present invention is further illustrated.
As shown in figure 1 ﹑ 2: a kind of constant temperature and controllable temperature formula test unit being applicable to the test of saliferous clay engineering characteristic, mainly comprises: temperature-sensing system (11) ﹑ cooling control systems (12) ﹑ heating control systems (13) ﹑ solid-state relays (14) ﹑ temperature controllers (15) and chamber intelligent control system (16) composition.
Described constant temperature and controllable temperature formula test unit (1) are mainly divided into specimen test district and workspace, and specimen test district is divided into three floor by dividing plate (10), and workspace, right side is mainly used in the placement of relevant device.
Described temperature-sensing system (11) side is connected with specimen test district, and opposite side is connected with temperature controller (15); Cooling control system (12) side is connected with specimen test district, and opposite side connects a solid-state relay (14), and solid-state relay (14) connects temperature controller (15); Heating control system (13) side is connected with specimen test district, and opposite side connects a solid-state relay (14), and then solid-state relay (14) is connected to temperature controller (15); Temperature controller is finally connected with chamber intelligent control system (16).
Described intelligent control system (16) is divided into constant low temperature and Frozen-thawed cycled two gears, constant low temperature gear provides constant low temperature environment, Frozen-thawed cycled gear provides the environment of high/low temperature continuous circulation, and periodicity is determined by freezing and thawing test number of times by-pass cock (17).
Put up with in conjunction with example illustratively job step of the present invention below:
(1) requirement first on time tested, carries out the preparation of sample;
(2) according to the requirement of test condition, the experimental enviroment of constant temperature or freeze-thaw cycles is selected;
(3) as selected constant temperature experimental enviroment, setting test temperature and test period; As selected the experimental enviroment of Frozen-thawed cycled, then the upper lower limit value of design temperature and corresponding time in a cycle, finally determine the cycle of Frozen-thawed cycled;
(4) open switch open chamber, after the environmental work of setting completes, closing device, takes out the Experimental Study On Mechanical Properties that test specimen carries out being correlated with.
Above-described embodiment is only be described certain embodiments of the present invention; be not that special technology limiting has been carried out to scope of the present invention; under the prerequisite not departing from design concept of the present invention; the staff of this professional domain makes improvements portion of techniques scheme of the present invention or upgrades, within the protection domain that all should belong to claim of the present invention.
Claims (2)
1. be applicable to constant temperature and the controllable temperature formula test unit of the test of saliferous clay engineering characteristic, it is characterized in that: primarily of temperature-sensing system (11) ﹑ cooling control system (12) ﹑ heating control system (13) ﹑ solid-state relay (14) ﹑ temperature controller (15) and chamber intelligent control system (16) composition; Constant temperature and controllable temperature formula test unit (1) are mainly divided into specimen test district and workspace;
Described temperature-sensing system (11) side is connected with specimen test district, and opposite side is connected with temperature controller (15); Cooling control system (12) side is connected with specimen test district, and opposite side connects a solid-state relay (14), and solid-state relay (14) connects temperature controller (15); Heating control system (13) side is connected with specimen test district, and opposite side connects a solid-state relay (14), and then solid-state relay (14) is connected to temperature controller (15); Temperature controller is finally connected with chamber intelligent control system (16);
Described intelligent control system (16) is divided into constant low temperature and Frozen-thawed cycled two gears, and constant low temperature gear provides constant low temperature environment, and Frozen-thawed cycled gear provides the environment of high/low temperature continuous circulation;
2. constant temperature according to claim 1 and controllable temperature formula test unit, is characterized in that (((((((9) ﹑ freezing and thawing test number of times by-pass cockes and display (17) etc. are all arranged in the outside on right side to 8) ﹑ power switches to 7) ﹑ circulation system high temperature scale by-pass cockes to 6) ﹑ circulation system high temperature display to 5) ﹑ circulation system lower temperature scale by-pass cockes to 4) ﹑ circulation system low temperature display devices to 3) ﹑ thermostat temperature numerical value by-pass cockes to constant temperature system display.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201520030865.2U CN204479396U (en) | 2015-01-17 | 2015-01-17 | A kind of constant temperature and controllable temperature formula test unit being applicable to saliferous clay test specimen |
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| CN201520030865.2U CN204479396U (en) | 2015-01-17 | 2015-01-17 | A kind of constant temperature and controllable temperature formula test unit being applicable to saliferous clay test specimen |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111312052A (en) * | 2020-04-02 | 2020-06-19 | 中国矿业大学(北京) | Experiment platform and experiment method for simulating movement of mining rock stratum |
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2015
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111312052A (en) * | 2020-04-02 | 2020-06-19 | 中国矿业大学(北京) | Experiment platform and experiment method for simulating movement of mining rock stratum |
| CN111312052B (en) * | 2020-04-02 | 2023-09-15 | 中国矿业大学(北京) | Experimental platform and experimental method for simulating mining rock stratum movement |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150715 Termination date: 20160117 |
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| EXPY | Termination of patent right or utility model |