CN2036665U - Multipurpose thermostatic bath - Google Patents

Abstract

The utility model discloses an improved thermostatic bath which is used for testing and graduating the first order and the second order thermometers, transistorized thermometers, thermal resistors, thermo-couples, etc. In a-30 deg. C-300 deg. C temperature range. A bath body and a large panel are integrally formed by adopting ceramic materials. An insulating sleeve is made of rock wool materials. A heating-up device comprises a heater and a temperature controller. A control console and an operation console are rationally assembled in one. Compared with the existing thermostatic baths, the utility model is characterized in that a thermostatic region is more than 150 deg. C wider. The heat-insulating property of the thermostatic bath is strong. Temperature rise rate is increased more than 4 times. The utility model has the advantages of convenient operation, long service life, simple manufacturing technique, strong anticorrosion property, neatness, beauty, safety, reduced cost, etc. The cost of the thermostatic bath is reduced more than 80%.

Description

Multipurpose thermostatic bath

The utility model relates to a kind of improved calibration cell, is used at-30 ℃ of-300 ℃ of warm areas calibratings and calibration first-class and second-class standard thermometer, semiconductor point temperature meter, thermal resistance and thermopair etc.

The present calibration cell of producing, its frid (groove drum and big panel) is to make with chromium plating steel plate, oxygen polarization aluminium sheet or corrosion resistant plate, perhaps make big panel with above material, making groove drum with glass assembles, plate forming need stretch or weld, and exists that cost height, processing difficulties are perishable, rapid heat dissipation, warm field stability is poor, serviceable life short, the problem of warm area narrow range.Its insulation material adopts shortcomings such as polyfoam, expanded perlite or glass fibre, these materials exist the cost height respectively, coefficient of heat conductivity is big, and are perishable, easy aging, overweight and harmful.It adds Thermal temperature controller a kind of power only is set, and it is slow excessively to exist firing rate, difficult control of temperature, thereby cause the electric deficiency of expense consuming time.

In CN85205068, disclosed a kind of cell body of making of copper-stainless steel composite material, with metal support as panel,, handle as muff with aluminosilicate fiber cotton, adopt " the heat pipe type glass-stem thermometer demarcation/calibrating calibration cell " of heat pipe principle design by external control desk.Can demarcate or the calibrating use at 75 ℃ of-250 ℃ of warm areas for glass-stem thermometer.Though solved the anticorrosion and pollution problem of calibration cell container, also exist difficulty in process, cost costliness, warm area is narrow, serviceable life is short and dangerous deficiency such as reliable.

The purpose of this utility model be to provide a kind of wide warm area, multi-usage, quick heating, insulation strong, be convenient to operate, manufacturing process is simple, cost is low, anti-rotten power is strong, long service life and safe and reliable calibration cell.

The utility model is achieved in that and the muff made with the rock wool material is housed in support, is made into integration frid, stirring apparatus, well heater and thermostat with stupalith, handle well heater and thermostat by external control desk, and handle stirring apparatus by motor and belt.In use can be according to the calibrating and the needs of calibration, by low (30 ℃-0 ℃), in (room temperature-95 ℃), height (50 °-300 ℃) temperature in the frid container, add dry ice (spilling essence), water or oily respectively as medium.By the Fast Heating of well heater, make medium reach required critical temperature, keep equilibrium temperature by controller then, start stirring apparatus, medium is sucked the plate hole from bucket in the bucket, from the hole of bucket lower plate, discharge outside the bucket again, form medium in the inside and outside rotation circulation of bucket.Thereby make the vertical temperature field error of calibration cell be not more than 0.005 ℃; Level temperature field is not more than 0.005 ℃; Temperature field stability: in Δ t0.07 ℃/10 minutes.Thereby make calibration cell reach wide warm area, multi-usage, quick heating, insulation strong, be convenient to operate, manufacturing process is simple, cost is low, anti-rotten power is strong, long service life and safe and reliable purpose.

Another kind of scheme of the present utility model is: pressing on the basis of first kind of scheme, control desk is contained on the support, can make so not only that calibration cell reaches wide warm area, multi-usage, technology is simple, cost is low, long service life, and can avoid lead between control desk and the operator's console, under the trampling of people and Che, leak outage and cause shut-down and personal injury, reach more safe and reliable purpose.

The utility model can also be realized like this: adopting power is the thermostat that 1000-2000 watt well heater and power are 300-600 watt.When calibration cell starts, use powerful well heater earlier, make medium reach required critical temperature fast, keep equilibrium temperature by thermostat then.Initial firing rate is speeded more than 4 times, and make thermostat reduce the frequent number of times of opening, stop, reach the power saving that saves time, the purpose of being convenient to operate.

The utility model technical scheme preferably is: control desk is made up of block terminal and control panel two parts.Control panel is contained in the place that rack surface is convenient to operate, block terminal is contained in internal stent, make calibration cell neat and artistic.

The utility model best techniques scheme is: block terminal is contained in the below of other parts of internal stent, control panel is contained in the top of support lateral surface.Make calibration cell beautiful and clean, and be convenient to operation.

Below in conjunction with drawings and Examples the utility model is described in further detail.

Fig. 1 is divided into two-part cross-sectional schematic for the utility model control desk and operator's console.

Fig. 2 is contained in half section synoptic diagram on the control stand for the utility model control desk.

With reference to Fig. 1 first embodiment of the present utility model is described: the muff made from the rock wool material 3 is housed in support 6; Being made into integration groove internal diameter * height with stupalith is foursquare frid 2 for 200 * 510 millimeters of φ, upper plate; Handle stirring apparatus 1 with external control desk 5 by motor 4 and belt 11.Stirring apparatus 1 is by small panel, bucket upper plate, bucket, bucket lower plate, belt pulley, axle sleeve, shaft and blade, assembles with double-screw bolt, cover and nut.Outside the bucket of small panel and bucket upper plate, in the week,, have the jack of many different sizes by the needs of calibrating and calibration, 1500 watts well heaters 7 are made " U " type, be contained in frid 2 containers, outside the bucket of stirring apparatus 1, pass a barrel upper plate, be fixed on the small panel, 500 watts of controllers 9 are made screw type, be contained in the bucket, pass a barrel upper plate round shaft, be fixed on the small panel, handle well heater 7 and controller 9 by external control desk 5.

With reference to Fig. 2, second embodiment of the present utility model is described: change control desk into block terminal 8 and control panel 10 two parts.Block terminal 8 is contained in support 6 inner other parts belows, and control panel 10 is contained in the top of support 6 lateral surfaces.In addition, other parts are fully identical with first embodiment.

See figures.1.and.2, method of operating of the present invention is described: according to the needs of calibrating and calibration, in frid 2 containers, add certain medium, electric contact thermometer is inserted in the jack of small panel, the output line of electric contact thermometer and the control circuit of calibration cell are linked, energized is transferred to contact pilotage on the temperature that will control by the magnet steel of rotation electric contact thermometer.By control panel 10(control desk 5) handle well heater 7 and be rapidly heated and handle stirring vane and rotate, promote the medium circulation rotational flow in the container.With standard thermometer with inserted by the object examined and determine in the jack of small panel, when temperature will reach desired value, start thermostat 9, close well heater 7, when equitemperature is raised to desired value, can examine and determine and calibration.

Use the said Multipurpose thermostatic bath of the utility model, compare with " heating tube-type glass thermometer-calibrating/checking constant-temp. oven " with general thermostat, have following significant effect: 1. flat-temperature zone wide (30 ℃-300 ℃), it is multiplex to reach a groove. 2. heat-insulating property is strong, and intensification speed speeds more than 4 times. 3. antiseptic property is strong, long service life. 4. clean and tidy, attractive in appearance, safe, reliable. 5. manufacturing process is simple, and cost is more than 80%.

Claims (5)

1, a kind ofly is used to examine and determine and the multipurpose thermostatic groove of calibration thermometer, semiconductor point temperature meter, thermal resistance and thermopair, it is the motor of handling on the support 6 by external control desk 54, handling stirring apparatus 1 by belt 11 forms, it is characterized in that muff 3 usefulness rock wool materials make, frid 2 usefulness stupaliths are made into integration, and heat riser is divided into well heater 7 and thermostat 9 two parts.

2, a kind ofly be used to examine and determine and the multipurpose thermostatic groove of calibration thermometer, semiconductor point temperature meter, thermal resistance and thermopair, be that motor 4 is housed on support 6, handling stirring apparatus 1 by belt 11 forms, it is characterized in that muff 3 usefulness rock wool materials make, frid 2 usefulness stupaliths are made into integration, heat riser is divided into well heater 7 and thermostat 9 two parts, and control desk 5 is contained on the support 6.

3, multipurpose thermostatic groove as claimed in claim 1 or 2, the power that it is characterized in that well heater 7 are 1000 watts-2000 watts, and the power of thermostat 9 is 300-600 watt.

4, multipurpose thermostatic groove as claimed in claim 2 is characterized in that control desk is made up of block terminal 8 and control panel 10.

5, multipurpose thermostatic groove as claimed in claim 4 is characterized in that block terminal 8 is contained in the below of support 6 internal works, and control panel 10 is contained in the top of support 6 lateral surfaces.

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