CN208224139U - A kind of experimental provision that measured by cooling method metal specific heat holds - Google Patents
A kind of experimental provision that measured by cooling method metal specific heat holds Download PDFInfo
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- CN208224139U CN208224139U CN201820731555.7U CN201820731555U CN208224139U CN 208224139 U CN208224139 U CN 208224139U CN 201820731555 U CN201820731555 U CN 201820731555U CN 208224139 U CN208224139 U CN 208224139U
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- outer housing
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Abstract
The utility model discloses the experimental provisions that a kind of measured by cooling method metal specific heat holds, including outer housing, temperature indicator and timer are fixedly installed on the lateral wall of the outer housing, loading cylinder is fixedly installed on the rack, temperature sensor is provided on the bottom plate and side wall of the loading cylinder, two groups of thermal insulation boards in same level are provided in the inner cavity of the outer housing, electric hot plate and heat-conducting cylinder are additionally provided in the inner cavity of the outer housing, lifting mechanism is provided on the top cover, the lifting mechanism includes support plate, elevating lever and connecting rod.The utility model can be such that electric hot plate separates completely with detected metal, remaining radiations heat energy on electric hot plate and heat-conducting cylinder is avoided to generate interference to the rate of heat dispation of detected metal bar, multiple spot detection can be realized to detected metal bar, guarantee the correctness of temperature detection, the rate of heat dispation for influencing to be detected metal bar is avoided simultaneously, guarantees the accuracy of experiment.
Description
Technical field
The utility model relates to metal specific heats to hold determination techniques field, what specially a kind of measured by cooling method metal specific heat held
Experimental provision.
Background technique
Specific heat capacity abbreviation specific heat, also known as specific heat capacity are a common physical quantitys in thermodynamics, indicate object heat absorption or
Heat-sinking capability.Specific heat capacity is bigger, and the heat absorption of object or heat-sinking capability are stronger.It refers to that certain substance of unit mass increases or declines
The heat that unit temperature is absorbed or released.
According to Newton's law of cooling, the specific heat capacity with measured by cooling method metal is one of common method in calorimetry.By certain
After the metal sample heating of one mass, then it is cooled down, the rate of thermal loss and the temperature decline of unit time at
Direct ratio.If a certain metal sample specific heat capacity it is known that same specification another metal if can be under identical cooler environment
And their quality is combined to extrapolate the specific heat capacity of another metal according to the cooling rate of two kinds of samples in temperature range.
The heating device for the experimental provision that existing measured by cooling method metal specific heat holds is after heating metal, thereon
Remaining radiations heat energy can generate interference to the rate of heat dispation of metal, and metal can be in contact with carrier, may will affect it
Rate of heat dispation, leading to experimental result, there are biggish errors.Therefore, it is proposed that the reality that a kind of measured by cooling method metal specific heat holds
Experiment device.
Utility model content
The purpose of this utility model is to provide the experimental provisions that a kind of measured by cooling method metal specific heat holds, and can make electric hot plate
It is separated completely with detected metal, remaining radiations heat energy on electric hot plate and heat-conducting cylinder is avoided to dissipate detected metal bar
Hot rate generates interference, and multiple spot detection can be realized to detected metal bar, guarantees the correctness of temperature detection, while avoiding shadow
The rate of heat dispation for ringing detected metal bar, guarantees the accuracy of experiment, to solve the problems mentioned in the above background technology.
To achieve the above object, the utility model provides the following technical solutions: what a kind of measured by cooling method metal specific heat held
Experimental provision, including outer housing are provided with top cover at the top of the outer housing, are fixedly installed on the lateral wall of the outer housing
Temperature indicator and timer are provided with rack in the inner cavity of the outer housing, are fixedly installed with loading on the rack
Tin, it is provided with temperature sensor on the bottom plate and side wall of the loading cylinder, is provided in the inner cavity of the outer housing at two groups
In the thermal insulation board in same level, and two groups of thermal insulation boards are linked together by clamping mechanism, in the inner cavity of the outer housing
It is additionally provided with electric hot plate and heat-conducting cylinder, the electric hot plate is fixedly mounted on heat-conducting cylinder, the diameter and heat-conducting cylinder of the loading cylinder
Diameter it is identical, lifting mechanism is provided on the top cover, the lifting mechanism includes support plate, elevating lever and connecting rod, institute
It states support plate and is provided with two groups, and two groups of support plates are symmetrically mounted on top cover, and waist-shaped hole is offered in the support plate, it is described
Elevating lever is threaded through in waist-shaped hole, and one end of the connecting rod is fixed at the center of elevating lever, is provided in the support plate
The other end of lock-screw, the connecting rod is fixed on heat-conducting cylinder.
Preferably, the clamping mechanism includes slot and inserted block, and the slot and inserted block are separately positioned on two groups of thermal insulation boards
On the end face being in contact, the inserted block is plugged in slot.
Preferably, the outer housing is internally provided with insulating layer of asbestos.
Preferably, anti-skidding cord is provided on the plate outer side wall of the outer housing.
Preferably, knob is provided on the top cover, elevating lever and thermal insulation board.
Preferably, on the bottom plate of the loading cylinder at least provided with two groups of temperature sensors, on the side wall of the loading cylinder
At least equal radians are provided with three groups of temperature sensors.
Preferably, the thermal insulation board, which is located on the end of the inner cavity of outer housing, is provided with limited block.
Compared with prior art, the utility model has the beneficial effects that
1, electric hot plate and heat-conducting cylinder lifting can be got up by lifting mechanism, then electric hot plate is made by thermal insulation board and is detected
Metal separate completely, avoid remaining radiations heat energy on electric hot plate and heat-conducting cylinder from producing the rate of heat dispation of detected metal bar
Raw interference, guarantees the accuracy of experiment；
2, firm fixed and heating can be carried out to detected metal bar by loading cylinder, electric hot plate and heat-conducting cylinder, makes to be detected
The heating temperature for surveying metal bar is more uniform, and multiple groups temperature sensor makes detected metal bar not be in contact with loading cylinder,
When being cooled down, multiple spot detection can be realized to detected metal bar, guarantees the correctness of temperature detection, while avoiding influencing quilt
Detect the rate of heat dispation of metal bar.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model；
Fig. 2 is the schematic side view of the utility model；
Fig. 3 is the schematic cross-sectional view of the utility model；
Fig. 4 is enlarged diagram at A in Fig. 3 of the utility model.
In figure: 1, outer housing；2, top cover；3, temperature indicator；4, timer；5, rack；6, loading cylinder；7, temperature passes
Sensor；8, thermal insulation board；9, clamping mechanism；91, slot；92, inserted block；10, electric hot plate；11, heat-conducting cylinder；12, lifting mechanism；121,
Support plate；122, elevating lever；123, connecting rod；13, waist-shaped hole；14, lock-screw；15, insulating layer of asbestos；16, anti-skidding cord；
17, it shakes hands；18, limited block.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work
Every other embodiment obtained, fall within the protection scope of the utility model.
Fig. 1-4 is please referred to, the utility model provides a kind of technical solution: a kind of experiment that measured by cooling method metal specific heat holds
Device, including outer housing 1, the top of the outer housing 1 are provided with top cover 2, are fixedly installed on the lateral wall of the outer housing 1
Temperature indicator 3 and timer 4, timer 4 are provided with rack 5, institute for carrying out timing in the inner cavity of the outer housing 1
State and be fixedly installed with loading cylinder 6 on rack 5, loading cylinder 6 for placing detected metal bar, the bottom plate of the loading cylinder 6 and
Temperature sensor 7 is provided on side wall, temperature sensor 7 uses thermistor-type, high sensitivity, and temperature sensor 7 passes through
Conducting wire and temperature indicator 3 are electrically connected, and temperature indicator 3 is used for the temperature that displays temperature sensor 7 senses, the shell
Two groups of thermal insulation boards 8 in same level are provided in the inner cavity of body 1, and two groups of thermal insulation boards 8 are connected by clamping mechanism 9
Together, electric hot plate 10 and heat-conducting cylinder 11 are additionally provided in the inner cavity of the outer housing 1, the electric hot plate 10, which is fixedly mounted on, leads
On hot cylinder 11, electric hot plate 10 is to make exothermic material with lectrothermal alloy wire, makees insulating materials with mica soft board, outsourcing is with metal sheet
The equipment heated, electric hot plate 10 can be electrically heated, then transfer heat to being detected in loading cylinder 6 by heat-conducting cylinder 11
It surveys on metal bar, and then is heated to metal bar, the diameter of the loading cylinder 6 is identical with the diameter of heat-conducting cylinder 11, convenient to tested
The metal bar of survey is fixed, and lifting mechanism 12 is provided on the top cover 2, and the lifting mechanism 12 includes support plate 121, rises
Bar 122 and connecting rod 123 drop, and the support plate 121 is provided with two groups, and two groups of support plates 121 are symmetrically mounted on top cover 2,
Waist-shaped hole 13 is offered in the support plate 121, the elevating lever 122 is threaded through in waist-shaped hole 13, the both ends point of elevating lever 122
Do not expose the two sides of two groups of support plates 121, one end of the connecting rod 123 is fixed at the center of elevating lever 122, the support
Lock-screw 14 is provided on plate 121, offered in 122 upper and lower ends of support plate 121 and elevating lever two groups for screw
Hole, lock-screw 14 are inserted on support plate 121 and elevating lever 122 in corresponding screw hole, and elevating lever 122 is fixed on branch
The other end on the top and bottom end of fagging 121, the connecting rod 123 is fixed on heat-conducting cylinder 11.
Specifically, the clamping mechanism 9 includes slot 91 and inserted block 92, the slot 91 and inserted block 92 are separately positioned on two
On the end face that is in contact of group thermal insulation board 8, the inserted block 92 is plugged in slot 91, by slot 91 and inserted block 92 can make two groups every
The end that hot plate 8 is in contact is closely linked, and it is crooked to avoid thermal insulation board, while guaranteeing good leakproofness.
Specifically, the outer housing 1 is internally provided with insulating layer of asbestos 15, insulating layer of asbestos 15 can effectively completely cut off shell
The inner cavity of body 1 and external environment prevent heat from leaking and cause to scald, play good insulation effect.
Specifically, being provided with anti-skidding cord 16 on the plate outer side wall of the outer housing 1, anti-skidding cord 16 can increase shell
The bottom plate of body 1 and the frictional force of placed side avoid the experimental provision that sliding occurs and impact to experimental result.
Specifically, being provided with knob 17 on the top cover 2, elevating lever 122 and thermal insulation board 8, knob 17 can be convenient for top cover 2
Pick-and-place, the lifting of elevating lever 122 and the stretching of thermal insulation board.
Specifically, at least provided with two groups of temperature sensors 7, the side wall of the loading cylinder 6 on the bottom plate of the loading cylinder 6
On at least equal radians be provided with three groups of temperature sensors 7, multiple spot detection can be realized to detected metal bar, guarantees temperature detection
Correctness, while separate detected metal bar with loading cylinder 6, avoid the rate of heat dispation for influencing to be detected metal bar.
Specifically, the thermal insulation board 8, which is located on the end of the inner cavity of outer housing 1, is provided with limited block 18, limited block 18 can
The position of thermal insulation board 8 is defined, thermal insulation board 8 is avoided to be detached from from the inner cavity of outer housing 1.
Working principle: in use, opening top cover 2, metal bar to be detected being placed in loading cylinder 6, top cover 2,
So that connecting rod 123 is dropped to the bottom end of support plate 121 and is fixed by lock-screw 14 by elevating lever 122, makes thermally conductive
Cylinder 11 is set on detected metal bar, is opened electric hot plate 10, is transferred heat to detected metal bar by heat-conducting cylinder 11, and
The temperature for being detected metal bar is perceived by temperature sensor 7, temperature indicator 3 carries out real-time display, when reaching specified heating
After temperature, electric hot plate 10 is closed, and make connecting rod 123 that heat-conducting cylinder 11 be driven to move up by elevating lever 122, and pass through lock-screw
14 are locked in elevating lever 122 top of support plate 121, then by thermal insulation board 8 by where detected metal bar space and electricity
Space where hot plate 10 and heat-conducting cylinder 11 keeps apart, and detected metal bar is allowed to be cooled down, and passes through temperature indicator 3 and meter
When device 4 record and be detected metal bar and drop to time of another specific temperature from a specific temperature, metal bar to be detected is complete
It is taken out after cooling, then known specific heat capacity and the standard metal stick sample of detected metal bar same size is repeated into above-mentioned step
Suddenly, its time for dropping to same another specific temperature from specific temperature same as detected metal bar is obtained, according to meter
Calculate the specific heat capacity that can obtain detected metal bar.
While there has been shown and described that the embodiments of the present invention, for the ordinary skill in the art,
It is understood that these embodiments can be carried out with a variety of variations in the case where not departing from the principles of the present invention and spirit, repaired
Change, replacement and variant, the scope of the utility model is defined by the appended claims and the equivalents thereof.
Claims (7)
1. the experimental provision that a kind of measured by cooling method metal specific heat holds, including outer housing (1), it is characterised in that: the outer housing
(1) it is provided at the top of top cover (2), is fixedly installed with temperature indicator (3) and timer on the lateral wall of the outer housing (1)
(4), it is provided with rack (5) in the inner cavity of the outer housing (1), is fixedly installed with loading cylinder (6) on the rack (5),
It is provided with temperature sensor (7) on the bottom plate and side wall of the loading cylinder (6), is provided in the inner cavity of the outer housing (1)
Two groups of thermal insulation boards (8) in same level, and two groups of thermal insulation boards (8) are linked together by clamping mechanism (9), it is described
Electric hot plate (10) and heat-conducting cylinder (11) are additionally provided in the inner cavity of outer housing (1), the electric hot plate (10) is fixedly mounted on thermally conductive
On cylinder (11), the diameter of the loading cylinder (6) is identical with the diameter of heat-conducting cylinder (11), is provided with lifting machine on the top cover (2)
Structure (12), the lifting mechanism (12) include support plate (121), elevating lever (122) and connecting rod (123), the support plate
(121) two groups are provided with, and two groups of support plates (121) are symmetrically mounted on top cover (2), are offered on the support plate (121)
Waist-shaped hole (13), the elevating lever (122) are threaded through in waist-shaped hole (13), and one end of the connecting rod (123) is fixed on lifting
It at the center of bar (122), is provided with lock-screw (14) on the support plate (121), the other end of the connecting rod (123) is solid
It is scheduled on heat-conducting cylinder (11).
2. the experimental provision that a kind of measured by cooling method metal specific heat according to claim 1 holds, it is characterised in that: the card
Connection mechanism (9) includes slot (91) and inserted block (92), and the slot (91) and inserted block (92) are separately positioned on two groups of thermal insulation boards (8)
On the end face being in contact, the inserted block (92) is plugged in slot (91).
3. the experimental provision that a kind of measured by cooling method metal specific heat according to claim 1 holds, it is characterised in that: described outer
Shell (1) is internally provided with insulating layer of asbestos (15).
4. the experimental provision that a kind of measured by cooling method metal specific heat according to claim 1 holds, it is characterised in that: described outer
Anti-skidding cord (16) are provided on the plate outer side wall of shell (1).
5. the experimental provision that a kind of measured by cooling method metal specific heat according to claim 1 holds, it is characterised in that: the top
Knob (17) are provided on lid (2), elevating lever (122) and thermal insulation board (8).
6. the experimental provision that a kind of measured by cooling method metal specific heat according to claim 1 holds, it is characterised in that: the load
At least provided with two groups of temperature sensors (7) on the bottom plate of object cylinder (6), at least equal radians are set on the side wall of the loading cylinder (6)
It is equipped with three groups of temperature sensors (7).
7. the experimental provision that a kind of measured by cooling method metal specific heat according to claim 1 holds, it is characterised in that: it is described every
Hot plate (8), which is located on the end of the inner cavity of outer housing (1), is provided with limited block (18).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820731555.7U CN208224139U (en) | 2018-05-17 | 2018-05-17 | A kind of experimental provision that measured by cooling method metal specific heat holds |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820731555.7U CN208224139U (en) | 2018-05-17 | 2018-05-17 | A kind of experimental provision that measured by cooling method metal specific heat holds |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208224139U true CN208224139U (en) | 2018-12-11 |
Family
ID=64507985
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820731555.7U Expired - Fee Related CN208224139U (en) | 2018-05-17 | 2018-05-17 | A kind of experimental provision that measured by cooling method metal specific heat holds |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208224139U (en) |
-
2018
- 2018-05-17 CN CN201820731555.7U patent/CN208224139U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20181211 Termination date: 20210517 |