CN109991272A - Magnetothermal effect measuring instrument temperature regulating device and temperature control method - Google Patents
Magnetothermal effect measuring instrument temperature regulating device and temperature control method Download PDFInfo
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- CN109991272A CN109991272A CN201910275343.1A CN201910275343A CN109991272A CN 109991272 A CN109991272 A CN 109991272A CN 201910275343 A CN201910275343 A CN 201910275343A CN 109991272 A CN109991272 A CN 109991272A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N25/00—Investigating or analyzing materials by the use of thermal means
- G01N25/20—Investigating or analyzing materials by the use of thermal means by investigating the development of heat, i.e. calorimetry, e.g. by measuring specific heat, by measuring thermal conductivity
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D23/00—Control of temperature
- G05D23/19—Control of temperature characterised by the use of electric means
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Abstract
The invention discloses a kind of heat conducting pipe temperature regulating devices for magnetothermal effect measuring instrument, including heat conducting pipe, heat conducting pipe is fixed with heating element and cold-trap, the refrigeration of cold-trap and the heating of heating element are transmitted by heat conducting pipe, cold-trap connects cold-trap power governor by conducting wire, and heating element connects heating element power governor by conducting wire.The invention also discloses a kind of temperature control methods of magnetothermal effect measuring instrument temperature regulating device.The present invention can be realized temperature in heat conducting pipe and regulate and control, and improve the measurement accuracy of magnetothermal effect measurement measurement.
Description
Technical field
The present invention relates to a kind of magnetothermal effect measuring instruments, specifically, are related to a kind of magnetothermal effect measuring instrument temperature regulating device
And temperature control method.
Background technique
Room temperature magnetic refrigerating is a kind of solid-state Refrigeration Technique, is to be expected to replace the novel of traditional gas compression formula Refrigeration Technique
Refrigeration Technique.With the development of new material new technology, nearest more than ten years, room temperature magnetic refrigerating technological development is generally weighed by various countries
Depending on, and obtain incremental advances.This technology meets the requirements of the times of current sustainable development, it is considered to be one kind is hopeful to take
For the green refrigeration technology of conventional refrigeration technology.
Cold hydrazine (cold trap；Condensate trap) be on cooling surface in a manner of condensing captured gas
Hydrazine.It is placed between vacuum tank and pump, for adsorbed gas or the device of trapping oil vapour.With method physically or chemically come
The device of harmful components partial pressure in gas and vapour mixture is reduced hydrazine (or trap).Cold hydrazine processing is a kind of cooling dress
It sets, for collecting the substance in a certain melting range.One U-tube is placed in refrigerant, when gas passes through U-tube, is melted
The high substance of point becomes liquid, and low-melting substance plays the role of separation by U-tube.
Refrigerant used in room temperature and middle low temperature magnetic refrigerator is solid material, and the parameter for measuring material magnetic heating performance is
Isothermal magnetic entropy becomes and insulation temperature becomes, and usual measurement method is divided into the direct method of measurement and the indirect method of measurement, and the indirect method of measurement usually consumes
When and measurement cost it is higher, the direct method of measurement is quick and convenient, and measurement cost is low.Patent name: permanent-magnet magnetothermal effect is direct
The application of measuring instrument (patent No. 200520008166.4) product absolutely proves this point.In order to improve measurement accuracy, usually
It is required that the environment temperature of sample is constant or measures under slow heating/cooling state, need to control sample environment temperature
System and adjusting.
According to magnetothermal effect principle, magneto-caloric material is under changing magnetic field effect, the phenomenon that generating heating or cool down.It adopts
With the magnetothermal effect measuring instrument of fixed field system, changes of magnetic field is generated by sample disengaging magnetic field, it is therefore desirable to which sample is mobile
Pass in and out magnetic field.There is sample room in specimen holder front end, interior to place sample.Sample is moved into and out magnetic field with specimen holder, pastes on sample
Temperature sensor temperature collection variable signal.It needs to acquire the magnetothermal effect under different temperature points when measurement, it is therefore desirable to
Magnetic field is passed in and out under different temperature points repeatedly, often due to non-uniform temperature can cause measurement error in heat conducting pipe when measuring sample.
Summary of the invention
Technical problem solved by the invention is to provide a kind of magnetothermal effect measuring instrument temperature regulating device and temperature control method, energy
It enough realizes temperature regulation in heat conducting pipe, improves the measurement accuracy of magnetothermal effect measurement measurement.
Technical solution is as follows:
A kind of heat conducting pipe temperature regulating device for magnetothermal effect measuring instrument, including heat conducting pipe, heat conducting pipe are fixed with heating part
Part and cold-trap, the refrigeration of cold-trap and the heating of heating element are transmitted by heat conducting pipe, and cold-trap connects cold-trap power by conducting wire
Adjuster, heating element connect heating element power governor by conducting wire.
Further, heating element power governor, cold-trap power governor pass through signal wire respectively and connect host computer.
Further, host computer issues control instruction, controls heating element power governor and cold-trap power governor is adjusted
Output power is to realize temperature control.
A kind of temperature control method of magnetothermal effect measuring instrument temperature regulating device, comprising:
Sample, in thermally conductive in-pipe, requires sample environment temperature constant or slow with specimen holder when measuring sample temperature
When carrying out during heating/cooling, host computer issues control instruction to heating element power governor or cold-trap power regulation
Device；
Heating element power governor adjusts output power, and heating element changes heating temperature, alternatively, cold-trap power regulation
Device adjusts output power, and cold-trap changes cryogenic temperature；The heating of heating element or the refrigeration of cold-trap are transmitted on heat conducting pipe,
Uniform temperature environment is formed in heat conducting pipe.
Preferably, it when needing cold-trap cryogenic temperature constant, is exported by adjusting heating element power governor to heating
The output power of component realizes temperature control.
Preferably, when need heating element heating temperature it is constant when, adjust cold-trap power governor export to cold-trap
Output power realizes temperature control.
Preferably, when needing cold-trap and heating element to adjust realization temperature control jointly, heating element power governor is adjusted
To the output power of heating element, meanwhile, it adjusts cold-trap power governor and exports to the output power of cold-trap, cold-trap changes refrigeration
Temperature, heating element change heating temperature.
The technology of the present invention effect includes:
The present invention can be realized temperature in heat conducting pipe and regulate and control, and realizes the measurement request of constant temperature and slow heating/cooling, improves
The measurement accuracy of magnetothermal effect measurement measurement.Present invention refrigeration is realized that heating is realized by heating element by cold-trap, cold by adjusting
The respective power governor of trap, heating element exports appropriate power, can be realized temperature in heat conducting pipe and regulates and controls.The present invention can group
Three kinds of temperature control methods are closed out, realize that warm purpose can choose three kinds when needing slow heating/cooling or constant temperature measurement
One of temperature control method regulates and controls heating element by the output power of regulation power adjuster and/or the output power of cold-trap is real
It is existing.
Detailed description of the invention
Fig. 1 is the structural schematic diagram in the present invention for the heat conducting pipe temperature regulating device of magnetothermal effect measuring instrument；
Fig. 2 is the schematic diagram of the section structure in the present invention for the heat conducting pipe temperature regulating device of magnetothermal effect measuring instrument.
Specific embodiment
Be described below and specific embodiments of the present invention be fully shown, with enable those skilled in the art to practice and
It reproduces.
Material magnetothermal effect measurement usually requires that sample carries out during steady temperature or slow heating/cooling, to subtract
The influence that few variation of ambient temperature causes measurement error to increase.Heat conducting pipe temperature control in the present invention, for magnetothermal effect measuring instrument
The refrigeration of device realizes that heating is realized using heating element using cold-trap.Cold-trap and heating element are respectively connected to respective power
On adjuster, respective output power can be regulated and controled respectively, realize the purpose of temperature adjustment and temperature control.
As shown in Figure 1, being the structural schematic diagram in the present invention for the heat conducting pipe temperature regulating device of magnetothermal effect measuring instrument；Such as
It is the schematic diagram of the section structure in the present invention for the heat conducting pipe temperature regulating device of magnetothermal effect measuring instrument shown in Fig. 2.
Heat conducting pipe temperature regulating device for magnetothermal effect measuring instrument, comprising: heat conducting pipe 1, heating element 2, cold-trap 3, heating
Device power adjuster 4, cold-trap power governor 5.Heating element 2 and cold-trap 3 are close to heat conducting pipe 1 respectively and are fixed, and cold-trap 3 passes through
Conducting wire connect cold-trap power governor 5, heating element 2 by conducting wire connect heating element power governor 4, cold-trap 3 refrigeration with
The heating of heating element 2 is transmitted by heat conducting pipe 1, and substantially homogeneous temperature environment is formed in heat conducting pipe 1.Heating element power tune
It saves device 4, cold-trap power governor 5 and host computer (computer) is connected by signal wire respectively.
Apparatus of the present invention are the component parts of magnetothermal effect measuring instrument, are the portions for realizing the temperature adjustment of sample environment temperature and temperature control
Part.1 one end of heat conducting pipe is fixed on heating element 2 and cold-trap 3, and the other end is inserted into magnetic field.Heating element 2, cold-trap 3 with it is thermally conductive
Pipe 1 fits closely fixation, and heating and refrigeration can be transmitted on heat conducting pipe immediately, be formed in heat conducting pipe 1 substantially homogeneous
Temperature environment.When measuring sample, sample moves in heat conducting pipe 1 with specimen holder.In order to keep sample environment temperature adjustable controllable, by
Host computer (computer) issues control instruction, controls power governor (heating element power governor 4, cold-trap power governor 5)
Output power realize temperature control.
In order to improve measurement accuracy, sometimes require that sample environment temperature is constant or carries out during slow heating/cooling,
By one of following three kinds of modes come regulation power, the purpose of adjustment temperature is realized.
There are three types of combined temperature control methods:
The first, 3 output power of cold-trap is fixed, by adjusting the output of heating element power governor 4 to heating element 2
Output power realizes temperature control；
Second, the output power of heating element 2 is fixed, and adjusts the output of cold-trap power governor 5 to the output work of cold-trap 3
Rate realizes temperature control；
The third, cold-trap 3 and heating element 2 adjust jointly and realize temperature control.
By adjusting the output of heating element power governor 4 to the output power of heating element 2, meanwhile, adjust cold-trap function
Rate adjuster 5 is exported to the output power of cold-trap 3, and cold-trap 3 and heating element 2 are worked in coordination, and realizes temperature control.
The temperature control method of magnetothermal effect measuring instrument temperature regulating device, specifically includes the following steps:
Step 1: sample moves in heat conducting pipe 1 with specimen holder, and cold-trap refrigeration and the heating of heating element 2 pass through heat conducting pipe
1 transmitting；When measurement sample temperature requires sample environment temperature constant or carries out during slow heating/cooling, host computer
Control instruction is issued to heating element power governor 4 or cold-trap power governor 5；
Step 2: heating element power governor 4 adjusts output power, and heating element 2 changes heating temperature, alternatively, cold-trap
Power governor 5 adjusts output power, and cold-trap 3 changes cryogenic temperature；Heating or refrigeration are transmitted on heat conducting pipe 1, thermally conductive
Uniform temperature environment is formed in pipe 1.
When needing 3 cryogenic temperature of cold-trap constant, by adjusting the output of heating element power governor 4 to heating element 2
Output power realize temperature control.When need heating element 2 heating temperature it is constant when, adjust cold-trap power governor 5 output gives
The output power of cold-trap 3 realizes temperature control.When needing cold-trap and heating element to adjust realization temperature control jointly, heating element power tune
Device 4 is saved to adjust to the output power of heating element 2, meanwhile, it adjusts cold-trap power governor 5 and exports to the output power of cold-trap 3,
Cold-trap 3 changes cryogenic temperature, and heating element 2 changes heating temperature.
Term used herein is explanation and term exemplary, and not restrictive.Since the present invention can be with a variety of
Form be embodied without departing from invention spirit or essence, it should therefore be appreciated that above-described embodiment be not limited to it is any above-mentioned
Details, and should widely explaining within the spirit and scope of the appended claims, thus fall into claim or its etc.
Whole change and modification in effect range all should be appended claims and be covered.
Claims (7)
1. a kind of heat conducting pipe temperature regulating device for magnetothermal effect measuring instrument, including heat conducting pipe, which is characterized in that heat conducting pipe is fixed
There are heating element and cold-trap, the refrigeration of cold-trap and the heating of heating element are transmitted by heat conducting pipe, and cold-trap is connected by conducting wire
Cold-trap power governor, heating element connect heating element power governor by conducting wire.
2. being used for the heat conducting pipe temperature regulating device of magnetothermal effect measuring instrument as described in claim 1, which is characterized in that heating element function
Rate adjuster, cold-trap power governor pass through signal wire respectively and connect host computer.
3. being used for the heat conducting pipe temperature regulating device of magnetothermal effect measuring instrument as described in claim 1, which is characterized in that host computer issues
Control instruction, controls heating element power governor and cold-trap power governor adjusts output power to realize temperature control.
4. a kind of temperature control method of magnetothermal effect measuring instrument temperature regulating device, comprising:
Sample with specimen holder in thermally conductive in-pipe, when measurement sample temperature requires sample environment temperature constant or is slowly rising
When carrying out in temperature/temperature-fall period, host computer issues control instruction to heating element power governor or cold-trap power governor；
Heating element power governor adjusts output power, and heating element changes heating temperature, alternatively, cold-trap power governor tune
Output power is saved, cold-trap changes cryogenic temperature；The heating of heating element or the refrigeration of cold-trap are transmitted on heat conducting pipe, thermally conductive
Uniform temperature environment is formed in pipe.
5. the temperature control method of magnetothermal effect measuring instrument temperature regulating device as claimed in claim 4, which is characterized in that when needing cold-trap
When cryogenic temperature is constant, exported by adjusting heating element power governor to the output power realization temperature control of heating element.
6. the temperature control method of magnetothermal effect measuring instrument temperature regulating device as claimed in claim 4, which is characterized in that when needing to heat
When the heating temperature of component is constant, adjusts cold-trap power governor and export to the output power realization temperature control of cold-trap.
7. the temperature control method of magnetothermal effect measuring instrument temperature regulating device as claimed in claim 4, which is characterized in that when needing cold-trap
When adjusting realization temperature control jointly with heating element, heating element power governor is adjusted to the output power of heating element, meanwhile,
It adjusts cold-trap power governor to export to the output power of cold-trap, cold-trap changes cryogenic temperature, and heating element changes heating temperature.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910275343.1A CN109991272A (en) | 2019-04-08 | 2019-04-08 | Magnetothermal effect measuring instrument temperature regulating device and temperature control method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910275343.1A CN109991272A (en) | 2019-04-08 | 2019-04-08 | Magnetothermal effect measuring instrument temperature regulating device and temperature control method |
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| CN2777568Y (en) * | 2005-03-05 | 2006-05-03 | 包头稀土研究院 | Permanent magnet type direct measurer for magnetothermal effect |
| CN2850885Y (en) * | 2005-12-22 | 2006-12-27 | 佛山市顺德区汉达精密电子科技有限公司 | Device for heating inner surface of mould |
| CN101303606A (en) * | 2008-06-19 | 2008-11-12 | 浙江大学 | Ultra-magnetic deformation actuator thermostatic control apparatus |
| CN202052556U (en) * | 2011-06-02 | 2011-11-30 | 重庆大学 | Solid sample experiment heating system |
| CN103163177A (en) * | 2013-03-07 | 2013-06-19 | 包头稀土研究院 | Magnetothermal effect measurement system and method |
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| CN206974933U (en) * | 2017-05-08 | 2018-02-06 | 包头稀土研究院 | Magnetothermal effect measuring instrument |
| CN107703240A (en) * | 2017-11-28 | 2018-02-16 | 蒋万枫 | A kind of gas-chromatography programmed temperature sampling system and method using eddy current effect |
| CN208044429U (en) * | 2018-05-10 | 2018-11-02 | 江苏南大光电材料股份有限公司 | Low-power pipeline heating temperature regulating device |
-
2019
- 2019-04-08 CN CN201910275343.1A patent/CN109991272A/en active Pending
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1421661A (en) * | 2002-12-25 | 2003-06-04 | 上海交通大学 | Magnetofluid refrigerating circulator |
| CN2777568Y (en) * | 2005-03-05 | 2006-05-03 | 包头稀土研究院 | Permanent magnet type direct measurer for magnetothermal effect |
| CN2850885Y (en) * | 2005-12-22 | 2006-12-27 | 佛山市顺德区汉达精密电子科技有限公司 | Device for heating inner surface of mould |
| CN101303606A (en) * | 2008-06-19 | 2008-11-12 | 浙江大学 | Ultra-magnetic deformation actuator thermostatic control apparatus |
| CN202052556U (en) * | 2011-06-02 | 2011-11-30 | 重庆大学 | Solid sample experiment heating system |
| CN103163177A (en) * | 2013-03-07 | 2013-06-19 | 包头稀土研究院 | Magnetothermal effect measurement system and method |
| CN204882762U (en) * | 2015-08-29 | 2015-12-16 | 武汉佰力博科技有限公司 | Multi -functional electricity measuring instrument of heating refrigeration integration |
| CN106872516A (en) * | 2017-03-30 | 2017-06-20 | 包头稀土研究院 | Vacuum and permanent magnet magnetothermal effect measuring instrument |
| CN206974933U (en) * | 2017-05-08 | 2018-02-06 | 包头稀土研究院 | Magnetothermal effect measuring instrument |
| CN107703240A (en) * | 2017-11-28 | 2018-02-16 | 蒋万枫 | A kind of gas-chromatography programmed temperature sampling system and method using eddy current effect |
| CN208044429U (en) * | 2018-05-10 | 2018-11-02 | 江苏南大光电材料股份有限公司 | Low-power pipeline heating temperature regulating device |
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Application publication date: 20190709 |