CN104568666A - Automatic constant temperature device for bitumen needle forcemeter - Google Patents
Automatic constant temperature device for bitumen needle forcemeter Download PDFInfo
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- CN104568666A CN104568666A CN201410796973.0A CN201410796973A CN104568666A CN 104568666 A CN104568666 A CN 104568666A CN 201410796973 A CN201410796973 A CN 201410796973A CN 104568666 A CN104568666 A CN 104568666A
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Abstract
The invention discloses an automatic constant temperature device for a bitumen needle forcemeter. The automatic constant temperature device comprises a work bench and a water bath mechanism, wherein a water channel is fixedly formed in the work bench; a water inlet pipe and a water outlet pipe are respectively arranged in the water channel; a semiconductor heat-conducting mechanism is arranged in the water channel; a heat-conducting part of the semiconductor heat-conducting mechanism is positioned below the liquid level of the water channel; a radiating part of the semiconductor heat-conducting mechanism is positioned above the liquid level in the water channel; a temperature sensor is arranged on the side wall of the water channel; the induction end of the temperature sensor extends to below the liquid level in the water channel; a vertical bracket is also fixedly arranged on the work bench; and a cooling fan which corresponds to the semiconductor heat-conducting mechanism is arranged at the upper end of the bracket. Compared with existing equipment in the market, the automatic constant temperature device has the significant effects that the temperature control is relatively accurate; the size is relatively small; the power consumption is small; the operation is relatively easy; water in the water bath can be fully stirred; and the water temperature in the water bath can be kept the same.
Description
Technical field
The present invention relates to asphalt penetration test technical field, specifically, is a kind of bitumen needle forcemeter automatic thermostatic device.
Background technology
Asphalt Penetration is one of important indicator of pitch, being the ability representing pitch soft or hard degree and denseness, opposing shear failure, therefore when producing pitch, needing to carry out testing inspection to the pen. of pitch.
In process of the test; often can carry out the penetration test of 5 DEG C, 10 DEG C and 15 DEG C; and at each temperature, there is the requirement of definite value constant temperature; and the existing constant temperature system had in the market mostly is the mode that air conditioner compressed mechanism cold heat-generating pipe heats and carrys out constant temperature; require constant-temperature precision ± 0.1 DEG C in specification, the most precision of equipment temperature control of current market can exceed this numerical value, and power consumption is large; and equipment volume is large, the temperature of test space is drawn and rings greatly.
In addition, in existing asphalt penetrometer, namely the anhydrous stirring of the many employings of water-bath directly adopts water pipe to liquidate, and make the stirring of water in tank uneven, in water-bath, the homogeneity of water temperature is bad.
Summary of the invention
For the deficiencies in the prior art, the object of this invention is to provide a kind of bitumen needle forcemeter automatic thermostatic device, this automatic thermostatic device has that temperature controls precisely, compact, power consumption are little, be easy to operation, and can carry out water stirring to water-bath, improves the homogeneity of water temperature in water-bath.
For achieving the above object, the present invention states a kind of bitumen needle forcemeter automatic thermostatic device, comprise worktable and water-bath mechanism, described worktable is fixed with a tank, in described tank, be separately installed with a circle water inlet pipe and iris out water pipe, the water inlet end of described water inlet pipe is connected with intake pump, the water side of described rising pipe is connected with suction pump, its key is: in described tank, be provided with semiconductor heat-conducting mechanism, the heat-conducting part of this semiconductor heat-conducting mechanism is arranged in the below of described tank liquid level, the radiating part of described semiconductor heat-conducting mechanism is arranged in the top of described tank liquid level, the sidewall of described tank is provided with temperature sensor, the induction end of described temperature sensor stretches into the below of liquid level in described tank, described worktable is also fixed with vertical support, the upper end of this support is provided with the radiator fan corresponding with described semiconductor heat-conducting mechanism.
After the energising of automatic thermostatic device complete machine, after intake pump startup optimization certain hour, work into and out of water pump simultaneously, form water circulation, temperature sensor in water-bath passes to temperature signal the temperature controller in worktable, temperature controller carrys out the deviation of temperature and design temperature in constant water-bath according to design temperature, when temperature is higher than design temperature, the heat-conducting part refrigeration of semiconductor heat-conducting mechanism is lowered the temperature to water-bath, and opens radiator fan and carry out cooling to the radiating part of semiconductor heat-conducting mechanism; When temperature is lower than design temperature, the heat-conducting part of semiconductor heat-conducting mechanism heats, and heats up to water-bath, thus ensures that bath temperature is constant.This programme adopts semiconductor heat-conducting mechanism to carry out constant temperature water bath control, compares with market existing equipment, and temperature controls more precisely, volume is smaller and more exquisite, power consumption is little, be easier to operation.
Further technical scheme is, described water inlet pipe is along arranging counterclockwise, described rising pipe is along arranging clockwise, and the tail end of described water inlet pipe and rising pipe all seals, evenly offer the apopore of multiple inclination in the inside tube of described water inlet pipe with it, evenly offer multiple inlet opening with it in the inside tube of described rising pipe.
Adopt said structure, make water inlet pipe consistent with the water (flow) direction of rising pipe, avoid stirring generation disturb tilting water that the mouth of a river produces; In water-bath, the water delivering orifice of water inlet pipe is inclined design, in tank during supplementing water, due to the power of water pump, the centre flowing of current direction tank, fully can stir the water in water-bath, make water temperature in water-bath keep identical temperature, contribute to improving the degree of accuracy putting penetration test in order.
Further technical scheme is, described water inlet pipe is positioned at the top of rising pipe, and the length of described water inlet pipe is greater than described rising pipe.
Rising pipe design avoid below water inlet pipe to current stir interference, make the circulation stirring of current evenly.
Further technical scheme is, in described apopore and described water inlet pipe, the angle of water (flow) direction is acute angle.
Further technical scheme is, in described apopore and described water inlet pipe, the angle of water (flow) direction is 30 ~ 60 °.
By arranging the angle in described apopore and in-pipe flow direction like this, water can be made to stir more even, improving the homogeneity of water temperature in water-bath.
For ease of controlling discharge, described water inlet pipe is also connected with the flow valve for controlling inflow.
Remarkable result of the present invention is:
Compare with market existing equipment, temperature controls more precisely, volume is smaller and more exquisite, power consumption is little, be easier to operation; Fully can stir the water in water-bath, make water temperature in water-bath keep identical temperature, contribute to improving the degree of accuracy putting penetration test in order.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
Fig. 2 is the vertical view of Fig. 1;
Fig. 3 is the A-A cut-open view of Fig. 2;
Fig. 4 is mode of the offering schematic diagram of described inlet opening.
Embodiment
Below in conjunction with accompanying drawing, the specific embodiment of the present invention and principle of work are described in further detail.
As Figure 1-Figure 2, a kind of bitumen needle forcemeter automatic thermostatic device, comprise worktable 1 and water-bath mechanism, described worktable 1 is fixed with a tank 2, in described tank 2, be separately installed with a circle water inlet pipe 3 and iris out water pipe 4, the water inlet end of described water inlet pipe 3 is connected with intake pump 5, the water side of described rising pipe 4 is connected with suction pump 6, in described tank 2, semiconductor heat-conducting mechanism 7 is installed, the heat-conducting part of this semiconductor heat-conducting mechanism 7 is arranged in the below of described tank 2 liquid level, the radiating part of described semiconductor heat-conducting mechanism 7 is arranged in the top of described tank 2 liquid level, the sidewall of described tank 2 is provided with temperature sensor 8, the induction end of described temperature sensor 8 stretches into the below of liquid level in described tank 2, described worktable 1 is also fixed with vertical support, the upper end of this support is provided with the radiator fan 9 corresponding with described semiconductor heat-conducting mechanism 7.
As can be seen from Fig. 1 and Fig. 3, described water inlet pipe 3 is positioned at the top of rising pipe 4, and the length of described water inlet pipe 3 is greater than described rising pipe 4, namely water inlet pipe 3 is closer to the inwall of shown tank 2, and described water inlet pipe 3 is also connected with the flow valve 12 for controlling inflow.
See accompanying drawing 2-accompanying drawing 3, described water inlet pipe 3 is along counterclockwise setting, described rising pipe 4 is along clockwise setting, and described water inlet pipe 3 all seals with the tail end of rising pipe 4, evenly offer the apopore 10 of multiple inclination in the inside tube of described water inlet pipe 3 with it, evenly offer multiple inlet opening 11 with it in the inside tube of described rising pipe 4.
See accompanying drawing 3 and accompanying drawing 4, described apopore 10 is acute angle with the angle of water (flow) direction in described water inlet pipe 3, and in this example, this angle is preferably 45 °.
From the refrigeration principle of semiconductor material, when a N-type and P-type semiconductor particle metal connecting sheet are welded a galvanic couple pair time, after connecting DC current in this circuit, the just energy-producing transfer of energy, the joint that electric current flows to P type element by N-type element absorbs heat, become cold junction, electric current flows to the joint release heat of N-type element by P type element, becomes hot junction.
Therefore, this automatic thermostatic device is after complete machine energising, after intake pump 5 startup optimization certain hour, intake pump 5 with go out water pump 6 and work simultaneously, the apopore 10 of inclined design is in tank 2 during supplementing water, due to the power of intake pump 5, the centre flowing of current direction tank 2 forms eddy current, fully can stir the water in water-bath, water temperature in water-bath is made to keep identical temperature to form water circulation, temperature sensor 8 in water-bath passes to temperature signal the temperature controller in worktable 1, temperature controller carrys out the deviation of temperature and design temperature in constant water-bath according to design temperature,
When temperature is higher than design temperature, temperature controller in worktable 1, forward voltage is added to semiconductor heat-conducting mechanism 7, namely the joint that electric current flows to P type element by N-type element absorbs heat, the heat-conducting part of semiconductor heat conduction machine 7 is cold junction, refrigeration heat absorption is lowered the temperature to water-bath, and the radiating part of semiconductor heat conduction machine 7 is hot junction, therefore needs the radiating part opening radiator fan 9 pairs of semiconductor heat-conducting mechanisms 7 to carry out cooling;
When temperature is lower than design temperature, temperature controller in worktable 1, negative voltage is added to semiconductor heat-conducting mechanism 7, namely electric current is flowed to the joint release heat of N-type element by P type element, the heat-conducting part of semiconductor heat-conducting mechanism 7 becomes hot junction, heat intensification to water-bath, thus ensure that bath temperature is constant.
Claims (6)
1. a bitumen needle forcemeter automatic thermostatic device, comprise worktable (1) and water-bath mechanism, described worktable (1) is fixed with a tank (2), in described tank (2), be separately installed with a circle water inlet pipe (3) and iris out water pipe (4), the water inlet end of described water inlet pipe (3) is connected with intake pump (5), the water side of described rising pipe (4) is connected with suction pump (6), it is characterized in that: semiconductor heat-conducting mechanism (7) is installed in described tank (2), the heat-conducting part of this semiconductor heat-conducting mechanism (7) is arranged in the below of described tank (2) liquid level, the radiating part of described semiconductor heat-conducting mechanism (7) is arranged in the top of described tank (2) liquid level, the sidewall of described tank (2) is provided with temperature sensor (8), the induction end of described temperature sensor (8) stretches into the below of liquid level in described tank (2), described worktable (1) is also fixed with vertical support, the upper end of this support is provided with the radiator fan (9) corresponding with described semiconductor heat-conducting mechanism (7).
2. bitumen needle forcemeter automatic thermostatic device according to claim 1, it is characterized in that: described water inlet pipe (3) is along arranging counterclockwise, described rising pipe (4) is along arranging clockwise, and described water inlet pipe (3) all seals with the tail end of rising pipe (4), evenly offer the apopore (10) of multiple inclination in the inside tube of described water inlet pipe (3) with it, evenly offer multiple inlet opening (11) with it in the inside tube of described rising pipe (4).
3. bitumen needle forcemeter automatic thermostatic device according to claim 1 and 2, it is characterized in that: described water inlet pipe (3) is positioned at the top of rising pipe (4), and the length of described water inlet pipe (3) is greater than described rising pipe (4).
4. bitumen needle forcemeter automatic thermostatic device according to claim 1, is characterized in that: described apopore (10) is acute angle with the angle of described water inlet pipe (3) interior water (flow) direction.
5. bitumen needle forcemeter automatic thermostatic device according to claim 4, is characterized in that: described apopore (10) is 30 ~ 60 ° with the angle of described water inlet pipe (3) interior water (flow) direction.
6. bitumen needle forcemeter automatic thermostatic device according to claim 1, is characterized in that: described water inlet pipe (3) is also connected with the flow valve (12) for controlling inflow.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201410796973.0A CN104568666B (en) | 2014-12-19 | 2014-12-19 | Bitumen needle forcemeter automatic thermostatic device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410796973.0A CN104568666B (en) | 2014-12-19 | 2014-12-19 | Bitumen needle forcemeter automatic thermostatic device |
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| CN104568666A true CN104568666A (en) | 2015-04-29 |
| CN104568666B CN104568666B (en) | 2018-09-28 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104849177A (en) * | 2015-05-21 | 2015-08-19 | 河海大学 | Novel penetrometer of asphalt laboratory and implementation process |
| CN107908205A (en) * | 2017-11-13 | 2018-04-13 | 浙江师范大学 | Constant temperature observation device |
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| CN104089271A (en) * | 2014-06-13 | 2014-10-08 | 江苏巴威节能服务有限公司 | One-stage deoxidizing device for indirect heat-exchange forcible mixed exhaust steam recovery of condensate water and desalted water |
| CN204017457U (en) * | 2014-07-29 | 2014-12-17 | 绿地环保科技股份有限公司 | Vertical sedimentation tank modified node method |
| CN204422370U (en) * | 2014-12-19 | 2015-06-24 | 重庆鹏方交通科技股份有限公司 | Bitumen needle forcemeter automatic thermostat |
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2014
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Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
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| US3239945A (en) * | 1962-10-10 | 1966-03-15 | Whirlpool Co | Heat and blower control for a dryer |
| CN101008522A (en) * | 2006-01-23 | 2007-08-01 | 麦广海 | Mixed type water storing water heater |
| CN101109594A (en) * | 2006-07-18 | 2008-01-23 | 广东工业大学 | Cold accumulating device by ice |
| CN201053743Y (en) * | 2007-05-26 | 2008-04-30 | 青岛凯特太阳能科技有限公司 | Water-storage type water heater water controlling device |
| CN201996897U (en) * | 2011-01-04 | 2011-10-05 | 王纯忠 | Totally enclosed biliary tract flusher |
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| CN103294079A (en) * | 2013-06-16 | 2013-09-11 | 复旦大学 | Semi-conductor temperature control device for heating and refrigerating by using circulating medium |
| CN104089271A (en) * | 2014-06-13 | 2014-10-08 | 江苏巴威节能服务有限公司 | One-stage deoxidizing device for indirect heat-exchange forcible mixed exhaust steam recovery of condensate water and desalted water |
| CN204017457U (en) * | 2014-07-29 | 2014-12-17 | 绿地环保科技股份有限公司 | Vertical sedimentation tank modified node method |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104849177A (en) * | 2015-05-21 | 2015-08-19 | 河海大学 | Novel penetrometer of asphalt laboratory and implementation process |
| CN107908205A (en) * | 2017-11-13 | 2018-04-13 | 浙江师范大学 | Constant temperature observation device |
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| CN104568666B (en) | 2018-09-28 |
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