CN2534580Y - Indirectly-cooled sandwich constant temperature calorimeter - Google Patents
Indirectly-cooled sandwich constant temperature calorimeter Download PDFInfo
- Publication number
- CN2534580Y CN2534580Y CN 02223936 CN02223936U CN2534580Y CN 2534580 Y CN2534580 Y CN 2534580Y CN 02223936 CN02223936 CN 02223936 CN 02223936 U CN02223936 U CN 02223936U CN 2534580 Y CN2534580 Y CN 2534580Y
- Authority
- CN
- China
- Prior art keywords
- temperature
- bucket
- circuit
- constant temperature
- barrel
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Landscapes
- Investigating Or Analyzing Materials Using Thermal Means (AREA)
- Control Of Temperature (AREA)
Abstract
A lateral-cooling interlayer temperature calorimeter includes an internal barrel and a cover, an internal temperature barrel and an external temperature barrel, and a temperature control barrel; the external temperature barrel is provided with a refrigerating and heating device. The utility model is characterized in that the internal temperature barrel is provided with a temperature sensor; the output end of the temperature sensor is connected with the signal input end of a temperature control device provided with a temperature setting circuit; the output end of the temperature control device is connected with the trigger end of a power switch circuit of the refrigerating and heating device; the temperature control device consists of a signal input circuit, a signal processing circuit and a temperature setting circuit connected in series; the internal barrel cover is provided with a thermolator with a power switch circuit and the trigger end of the power switch circuit is connected with the output end of the temperature control device; the inner wall of the internal barrel cover is coated with an insulation layer and provided with a sealing device; a medium circulating pump controlled by the temperature control device is arranged among barrels. The utility model can accurately set the environmental temperature of the internal barrel, minimize the thermal capacity variation of the measuring system and make perfected linear compensation. The utility model is applicable to various adverse testing environments.
Description
Technical field: the utility model relates to material heating-value determination instrument, relates in particular to the architecture advances of the determining instrument of coal or wet goods material thermal value.
Background technology: at present, the basic structure of measuring the instrument of material thermal value both at home and abroad all has outer bucket, interior bucket, inner barrelhead, cover inner barrelhead wherein on the bucket and place outer bucket, adopt working methods such as heat-insulating type, thermostatic type, self-action, dry type, the temperature of outer bucket and inner barrelhead depends primarily on environment temperature.Under the constant situation of environment temperature, the thermal capacity of measuring system is stable, can guarantee to measure exactly the thermal value of material; But because the temperature of instrument environment of living in is difficult to constant, and change big, non-linear and be difficult to and predict, cause outer barrel temperature to change greatly, thereby cause that measurement system thermal capacity changes, so that be difficult to accurately measure the thermal value of material, therefore, 5 ℃ of every variations of GB regulation environment temperature are the thermal capacity of calibration measurements system again just, owing to need often to demarcate thermal capacity, cause testing efficiency low, test precision, accuracy are difficult to improve, and instrument requires harsh to test site, can not adapt to season, temperature variation, be difficult to adapt to on-the-spot on-line analysis.
Summary of the invention: at the above-mentioned shortcoming of prior art, technical problem to be solved in the utility model be to provide a kind of can accurately fix in the bucket environment be the initial temperature of constant temperature bucket, the thermal capacity of measuring system changed reduce to minimum, carrying out perfect test value compensation, thereby adapt to the indirectly cooled sandwich fixed-temperature calorimeter of various abominable test environments.
For this reason, technical solution of the present utility model is a kind of indirectly cooled sandwich fixed-temperature calorimeter, comprise: interior bucket, inner barrelhead, internal layer constant temperature bucket, outer constant temperature bucket, temperature adjustment bucket, cover inner barrelhead on the bucket wherein and place internal layer constant temperature bucket, internal layer constant temperature bucket places outer constant temperature bucket, be connected by pipeline between outer constant temperature bucket and temperature adjustment bucket, be provided with the system cooling and heating machine in the temperature adjustment bucket; It is characterized in that: be provided with temperature sensor in the described internal layer constant temperature bucket, the output terminal of temperature sensor is connected with the signal input part of the temperature regulating device that has temperature setting circuit, and the output terminal of temperature regulating device connects the trigger end of the power switch circuit of described system cooling and heating machine.
Described temperature regulating device is to be in series by signal input circuit, signal processing circuit and temperature setting circuit.
Be provided with the thermosistor of charged source switching circuit in the described inner barrelhead, the trigger end of its power switch circuit connects the output terminal of temperature regulating device; Also be covered with thermofin on the inwall of described inner barrelhead, and be provided with and cover the tightening seal device.
Between described outer constant temperature bucket and internal layer constant temperature bucket, between internal layer constant temperature bucket and interior bucket, between interior bucket and temperature adjustment bucket, be equipped with the medium circulation pump that is controlled by temperature regulating device between temperature adjustment bucket and outer constant temperature bucket; The heating unit of described system cooling and heating machine is mounted in the outer constant temperature bucket, also is provided with the medium stirrer in described outer constant temperature bucket.
Described signal input circuit is to be connected and composed successively by signal amplification circuit, multi-way switch chip, low-pass filter circuit, mould/number conversion circuit; Described temperature setting circuit is the keyboard input circuit of computing machine; Described signal processing circuit is that computing machine and interface circuit I/O thereof connect to form.
Improve through said structure, indirectly cooled sandwich fixed-temperature calorimeter of the present utility model has following advantage:
Owing in internal layer constant temperature bucket, be provided with temperature sensor, its output terminal is connected with the signal input part of the temperature regulating device that has temperature setting circuit, and the output terminal of temperature regulating device connects the trigger end of the power switch circuit of described system cooling and heating machine, when after the medium temperature that configures internal layer constant temperature bucket on the temperature setting circuit, the system cooling and heating machine promptly freezes/the heat acting according to design temperature, and by the temperature adjustment bucket at place and the outer constant temperature bucket that is attached thereto, internal layer constant temperature bucket, accurately the residing environment temperature of bucket is constant on the setting value by artificial control in the control; And the thermosistor of the charged source switching circuit of establishing in the inner barrelhead and lid tightening seal device, the influence, the interference that stop environmental variance to cause from loam cake; The environment temperature of bucket was constant in these technical measures had guaranteed to test when initial, it is very little influenced by environmental change, thereby changing, the thermal capacity that makes the measurement system reduces to minimum, make perfect test value compensation in order to instrument, improve the measuring accuracy and the accuracy of instrument greatly, avoided having improved testing efficiency because of the environmental change disadvantage of calibration measurements system thermal capacity again of often having to;
At the set medium circulation pump that is controlled by temperature regulating device between outer constant temperature bucket and internal layer constant temperature bucket, between internal layer constant temperature bucket and interior bucket, between interior bucket and temperature adjustment bucket, between temperature adjustment bucket and outer constant temperature bucket, reach medium stirrer set in outer constant temperature bucket, can make the initial temperature of the preceding total system of each test reach setting value very soon, and guarantee that the temperature of internal layer constant temperature bucket in test is uniform and stable;
Described temperature regulating device adopts ic core and computer autocontrol technique and signal processing circuit, makes temperature setting and temperature control efficient more, stable; Simultaneously, computing machine is the detection, record, calculating etc. of test data such as double as oxygen bomb temperature rise also, simplifies control, a tractor serves several purposes;
Experiment confirm: when variation of ambient temperature surpasses 20 ℃, the test accuracy of indirectly cooled sandwich fixed-temperature calorimeter of the present utility model still is better than GB; Oxygen bomb is put into temperature when changing for 5 ℃～35 ℃, and stringency of test guarantees in the GB allowed band;
The utility model is implemented easily, and simple in structure, effect is remarkable, has international advanced.
Description of drawings: now in conjunction with the accompanying drawings the utility model is described as follows.
Fig. 1 is the utility model embodiment general structure synoptic diagram.
Fig. 2 is the circuit theory diagrams of the temperature regulating device of the utility model embodiment.
Embodiment: as shown in Figure 1: indirectly cooled sandwich fixed-temperature calorimeter of the present utility model, it constitutes: oxygen bomb 1 places the medium of bucket 2 within the heat insulation bucket wall and goes up coated with inner barrelhead 3, and interior bucket 2 places the medium of layer constant temperature bucket 4 within the metal drum wall, internal layer constant temperature bucket 4 places the medium of layer constant temperature bucket 5 outside the heat insulation bucket wall, outer constant temperature bucket 5 is connected by pipeline with 6 in the temperature adjustment bucket of heat insulation bucket wall, is provided with system cooling and heating machine 7 in the temperature adjustment bucket 6; It is characterized in that: be provided with temperature sensor 8 in the described internal layer constant temperature bucket 4, the output terminal of temperature sensor 8 is connected with the signal input part of the temperature regulating device 9 that has temperature setting circuit 9-0, and the output terminal of temperature regulating device 9 connects the trigger end of the power switch circuit 10 of described system cooling and heating machine 7.
Be provided with the thermosistor 11 of charged source switching circuit 10 in the described inner barrelhead 3, the trigger end of its power switch circuit 10 connects the output terminal of temperature regulating device 9; Also be covered with thermofin 12 on the inwall 3-0 of described inner barrelhead 3, and be provided with and cover tightening seal device (not shown).
Be respectively equipped with medium circulation pump B3, B4, B1, the B2 that is controlled by temperature regulating device 9 at described outer constant temperature bucket 5 and 4 in internal layer constant temperature bucket, internal layer constant temperature bucket 4 and 2 in interior bucket, interior bucket 2 and 6 in temperature adjustment bucket, temperature adjustment bucket 6 and 5 in outer constant temperature bucket; The heating unit 7-1 of described system cooling and heating machine 7 is installed in the outer constant temperature bucket 5, also is provided with medium stirrer 13 in described outer constant temperature bucket 5.
As shown in Figure 2: described temperature regulating device 9 is to be in series by signal input circuit 9-1, signal processing circuit 9-2 and temperature setting circuit 9-0.
Described signal input circuit 9-1 is connected and composed successively by signal amplification circuit 9-11, CD4051 multi-way switch chip 9-12, RLC low-pass filter circuit 9-13, ICL7135 mould/number conversion circuit 9-14; The keyboard input circuit that described temperature setting circuit 9-0 is a computing machine; Described signal processing circuit 9-2 is that computing machine and interface circuit I/O thereof connect to form.
Further specify principle of work below in conjunction with accompanying drawing:
Cover tight inner barrelhead 3, operate the start of this instrument, the computing machine of temperature regulating device 9 carries out temperature test and constant process according to the setting of keyboard input circuit 9-0 to the water temperature of internal layer constant temperature bucket 4, in this process, the thermosistor 11 that temperature regulating device 9 is opened in system cooling and heating machine 7, the inner barrelhead carries out temperature adjustment, and open each medium circulation pump B1, B2, B3, B4 and quicken the water circulation between each barrel, in the hope of reaching the temperature balance between each barrel as early as possible; Water in internal layer constant temperature bucket 4 is after said process is stabilized on the design temperature, temperature regulating device 9 promptly turn-offs the power supply of system cooling and heating machine 7, thermosistor 11, each medium circulation pump B1, B2, B3, B4, make it shut down, still work and only stay medium stirrer 13; Then to oxygen bomb 1 igniting test, when rising to when beginning to descend after the highest, oxygen bomb 1 temperature ends, computing machine is write down maximum temperature difference, promptly finish one and take turns test, the lower whorl test repeats the same design temperature and the operating process of wheel test then ... thereby obtain a plurality of test datas under same setting internal layer constant temperature barrel temperature, eliminated fully significantly, instrument self thermal capacitance due to the random temperature variation is disorderly and to the interference of test result, obtain the test data of high precision, pin-point accuracy.
Claims (6)
1, a kind of indirectly cooled sandwich fixed-temperature calorimeter, comprise: interior bucket, inner barrelhead, internal layer constant temperature bucket, outer constant temperature bucket, temperature adjustment bucket, cover inner barrelhead on the bucket wherein and place internal layer constant temperature bucket, internal layer constant temperature bucket places outer constant temperature bucket, be connected by pipeline between outer constant temperature bucket and temperature adjustment bucket, be provided with the system cooling and heating machine in the temperature adjustment bucket; It is characterized in that: be provided with temperature sensor in the described internal layer constant temperature bucket, the output terminal of temperature sensor is connected with the signal input part of temperature regulating device, and the output terminal of temperature regulating device connects the trigger end of the power switch circuit of described system cooling and heating machine.
2, indirectly cooled sandwich fixed-temperature calorimeter as claimed in claim 1 is characterized in that: described temperature regulating device has temperature setting circuit.
3, indirectly cooled sandwich fixed-temperature calorimeter as claimed in claim 2 is characterized in that: described temperature regulating device is to be in series by signal input circuit, signal processing circuit and temperature setting circuit.
4, as arbitrary described indirectly cooled sandwich fixed-temperature calorimeter in the claim 1,2,3, it is characterized in that: be provided with the thermosistor of charged source switching circuit in the described inner barrelhead, the trigger end of its power switch circuit connects the output terminal of temperature regulating device; Also be covered with thermofin on the inwall of described inner barrelhead, and be provided with and cover the tightening seal device.
5, indirectly cooled sandwich fixed-temperature calorimeter as claimed in claim 4 is characterized in that: between described outer constant temperature bucket and internal layer constant temperature bucket, between internal layer constant temperature bucket and interior bucket, between interior bucket and temperature adjustment bucket, be equipped with the medium circulation pump that is controlled by temperature regulating device between temperature adjustment bucket and outer constant temperature bucket; The heating unit of described system cooling and heating machine is mounted in the outer constant temperature bucket, also is provided with the medium stirrer in described outer constant temperature bucket.
6, indirectly cooled sandwich fixed-temperature calorimeter as claimed in claim 5 is characterized in that: described signal input circuit is to be connected and composed successively by signal amplification circuit, multi-way switch chip, low-pass filter circuit, mould/number conversion circuit; Described temperature setting circuit is the keyboard input circuit of computing machine; Described signal processing circuit is that computing machine and interface circuit I/O thereof connect to form.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02223936 CN2534580Y (en) | 2002-04-26 | 2002-04-26 | Indirectly-cooled sandwich constant temperature calorimeter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02223936 CN2534580Y (en) | 2002-04-26 | 2002-04-26 | Indirectly-cooled sandwich constant temperature calorimeter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2534580Y true CN2534580Y (en) | 2003-02-05 |
Family
ID=33701493
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02223936 Expired - Fee Related CN2534580Y (en) | 2002-04-26 | 2002-04-26 | Indirectly-cooled sandwich constant temperature calorimeter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2534580Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2007109973A1 (en) * | 2006-03-29 | 2007-10-04 | Xiande Zhu | A calorimeter of an external bucket with a closed chamber circulation temperature controller |
| WO2007109972A1 (en) * | 2006-03-29 | 2007-10-04 | Xiande Zhu | A peripheral isothermal calorimeter with a circular tube |
| CN1821759B (en) * | 2006-03-29 | 2010-06-30 | 朱先德 | Calorimeter for bucket cover with closed chamber circulation temperature control device |
| CN101819172B (en) * | 2006-03-29 | 2012-09-05 | 湖南三德科技发展有限公司 | Calorimeter with closed-circuit cavity circulation temperature regulating device on barrel head |
-
2002
- 2002-04-26 CN CN 02223936 patent/CN2534580Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2007109973A1 (en) * | 2006-03-29 | 2007-10-04 | Xiande Zhu | A calorimeter of an external bucket with a closed chamber circulation temperature controller |
| WO2007109972A1 (en) * | 2006-03-29 | 2007-10-04 | Xiande Zhu | A peripheral isothermal calorimeter with a circular tube |
| CN1821761B (en) * | 2006-03-29 | 2010-05-12 | 朱先德 | Peripheral isothermal calorimeter with circulation tube |
| CN1821759B (en) * | 2006-03-29 | 2010-06-30 | 朱先德 | Calorimeter for bucket cover with closed chamber circulation temperature control device |
| CN101819172B (en) * | 2006-03-29 | 2012-09-05 | 湖南三德科技发展有限公司 | Calorimeter with closed-circuit cavity circulation temperature regulating device on barrel head |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102539018B (en) | Temperature sensor calibration device and method | |
| CN101319969A (en) | Fast appraisement method and device for refrigeration quality of miniature compression type refrigeration apparatus | |
| CN109799258B (en) | Product performance testing method and system | |
| CN111413126B (en) | Heat accumulation experimental system and control and detection device thereof | |
| CN2534580Y (en) | Indirectly-cooled sandwich constant temperature calorimeter | |
| CN100456030C (en) | Cold and hot box type heat transfer coefficient detector | |
| CN104062201A (en) | Experimental device for measuring technological parameters of vacuum drying and vacuum freeze drying processes | |
| CN103149955B (en) | Temperature accurate control device used for integrated cavity spectrum technology isotope analysis | |
| CN109471037A (en) | A kind of salt bridge-type thermoelectrochemistry battery testing platform quickly tested and its method | |
| CN1142416C (en) | Constant-temperature calorimeter | |
| CN112179125A (en) | Grain drying method and system | |
| CN104199488A (en) | Constant-temperature control device and method for reaction liquid in cuvette of full-automatic biochemical analyzer | |
| CN1164929C (en) | Calorimeter for measuring temp of sandwich | |
| CN1155818C (en) | Indirectly cooled sandwich fixed-temperature calorimeter | |
| CN2534581Y (en) | Sandwich constant temperature calorimeter | |
| CN1308782C (en) | Multi-point intelligent temp control method and temp controlled multi-channel light radiation standard probe | |
| CN1542439A (en) | Phase transition behavior measurement system for phase transition energy storage material | |
| CN2534579Y (en) | Constant temperature calorimeter | |
| CN201680927U (en) | High-precision temperature checking instrument based on ARM | |
| CN203224122U (en) | Intelligent drying oven allowing heating media to be selected | |
| CN105020932A (en) | Multistage and adjustable CCD refrigerating plant of Raman spectrometer | |
| CN202383215U (en) | Device for testing ageing and thermal time constant of multichannel thermistor | |
| CN214749925U (en) | Semiconductor temperature-changing sample stage | |
| CN110898979B (en) | Method and device for automatically regulating and controlling heat of vertical mill grinding system | |
| CN107202813A (en) | A kind of saturation vapour pressure device and method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |